CN218254642U - Self-oscillation pulse abrasive flow nozzle for polishing and grinding - Google Patents
Self-oscillation pulse abrasive flow nozzle for polishing and grinding Download PDFInfo
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- CN218254642U CN218254642U CN202222859792.0U CN202222859792U CN218254642U CN 218254642 U CN218254642 U CN 218254642U CN 202222859792 U CN202222859792 U CN 202222859792U CN 218254642 U CN218254642 U CN 218254642U
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Abstract
The utility model discloses a self-oscillation pulse abrasive flow nozzle for polishing and grinding relates to surface finishing processing technology field, oscillation pulse chamber in nozzle main part and locating nozzle main part, this oscillation pulse chamber is by first resonant cavity, intercommunication way and second resonant cavity communicate in proper order and constitute, wherein first resonant cavity and second resonant cavity are toper impingement angle resonant cavity, this design combines fluidic self-oscillation mechanism and soft abrasive flow polishing's mechanism, a two-chamber self-oscillation pulse abrasive flow polishing nozzle is proposed, produce higher peak velocity through polishing solution abrasive flow self-oscillation characteristic, peak pressure and higher torrent intensity improve the machining efficiency of low viscosity abrasive flow polishing method, finally accomplish internal surface high efficiency, high-quality polishing.
Description
Technical Field
The utility model relates to a surface finishing handles technical field, especially relates to a self-excited oscillation pulse abrasive flow nozzle for polishing and grinding.
Background
With the rapid progress and development of the mechanical industry in China, the requirements of people on the surface quality of machined parts are higher and higher. In the fields of civil aerospace, precise optical instruments, automobile manufacturing, mold product processing and the like, the part working surface of a key part plays a vital role in mechanical operation and mechanical performance, currently, polishing and grinding are the most main final processing means, the removal amount and tiny amount of materials in the processing process are removed, and a damage layer remained on the surface of a workpiece is eliminated through polishing and grinding, so that the roughness of the surface of the workpiece is greatly reduced, and a smooth and lossless processing material surface is obtained.
SUMMERY OF THE UTILITY MODEL
To above not enough, the utility model provides a self-oscillation pulse abrasive flow nozzle for polishing and grinding can utilize the inner chamber structure of nozzle to make the abrasive flow form the pulsed and strike, has reduced the abrasive flow on the one hand and has strikeed thin wall hole spare under direct high pressure, to the damage that thin wall hole spare caused, and on the other hand utilizes the pulsed to strike and can carry out more thorough clearance or polishing to the spare part surface.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the self-oscillation pulse abrasive particle flow nozzle for polishing and grinding comprises a nozzle main body and an oscillation pulse cavity arranged in the nozzle main body, wherein the oscillation pulse cavity comprises a first resonant cavity, a communicating channel and a second resonant cavity, the first resonant cavity, the communicating channel and the second resonant cavity are communicated with each other, the first resonant cavity, the communicating channel and the second resonant cavity are sequentially arranged in the nozzle main body, the communicating channel is communicated with the first resonant cavity and the second resonant cavity, and the first resonant cavity and the second resonant cavity are conical impact angle resonant cavities.
The utility model discloses a further preferred scheme is, the nozzle main part is including relative end and the play water end of intaking, it is equipped with the water inlet to intake to serve, be equipped with the delivery port on the play water end, the water inlet with the delivery port with the oscillating pulse chamber straight line intercommunication.
A further preferred solution of the present invention is that the water inlet and the water outlet are provided with pipe threads.
The utility model discloses a further preferred scheme is, the cover is equipped with first mounting flange board on the water inlet, it is equipped with lock nut still to overlap on the water inlet, lock nut and water inlet department are the threaded connection relation, lock nut will first mounting flange board presss from both sides tightly.
The utility model discloses a further preferred scheme is, be equipped with second mounting flange board on the delivery port, the limit of the delivery port in the nozzle main part with locking is connected through bolt and nut between the second mounting flange board.
The utility model discloses a further preferred scheme is, the water inlet down the oscillation pulse intracavity extends there is the chamber of intaking way, the chamber of intaking is said and is close to the shrink of water inlet end.
The utility model discloses a further preferred scheme is, water inlet, first resonant cavity, intercommunication way, second resonant cavity and delivery port are the hollow cylinder shape cavity that connects gradually.
The utility model discloses a further preferred scheme is, first resonant cavity and second resonant cavity are toper impingement angle resonant cavity, just the cavity length of first resonant cavity/second resonant cavity is 0.5 with the ratio of chamber footpath, and toper impingement angle is 60.
The utility model discloses a further preferred scheme is, water inlet contraction section pipe diameter with the intercommunication says that the pipe diameter ratio is 1.6, the intercommunication say the pipe diameter with delivery port pipe diameter ratio is 1.6.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides a pair of self-oscillation pulse abrasive flow nozzle for polishing and grinding has newly-increased a second grade oscillation cavity again on the basis of single cavity, compares single cavity and has better torrent characteristic to further improve polishing efficiency.
2. The utility model discloses in, this nozzle combines together the mechanism of the self-excited oscillation mechanism of fluid and the polishing of soft grit granule, utilize the polishing solution that thoughtlessly has stereoplasm solid grit granule and fluidic profile modeling nature to process the internal surface of various die cavity structures to produce the machining efficiency that higher peak speed, peak pressure and higher turbulence intensity improved low viscosity abrasive flow polishing method through polishing solution grit flow self-excited oscillation characteristic, finally accomplish internal surface high efficiency, high-quality polishing.
3. The utility model discloses self-oscillation generating device possesses nozzle simple structure, the volume is less, easy dismounting, and the security is high, advantage such as the cost is lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic sectional structure diagram of the nozzle of the present invention.
Wherein the labels shown in the figures are: 1. a water inlet; 2. locking the nut; 3. a first fixed flange plate; 4. a first resonant cavity; 5. a communicating passage; 6. a second resonant cavity; 7. a second fixed flange plate; 8. a water outlet; 9. a nozzle body.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside" and the like are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1, a preferred embodiment of the present invention provides a self-oscillation pulse abrasive particle flow nozzle for polishing and grinding, including a nozzle main body 9 and an oscillation pulse cavity disposed in the nozzle main body 9, wherein the oscillation pulse cavity includes a first resonant cavity 4, a communication channel 5 and a second resonant cavity 6, the first resonant cavity 4, the communication channel 5 and the second resonant cavity 6 are communicated with each other, the first resonant cavity 4, the communication channel 5 and the second resonant cavity 6 are sequentially arranged in the nozzle main body 9, the communication channel 5 communicates the first resonant cavity 4 with the second resonant cavity 6, and the first resonant cavity 4 and the second resonant cavity 6 are both cone-shaped impact angle resonant cavities;
the utility model discloses in, this nozzle combines fluidic self-excited oscillation mechanism and the mechanism of the polishing of soft grit granule, utilizes the polishing solution that mixes stereoplasm solid grit granule and fluidic profile modeling nature to process the internal surface of various die cavity structures to produce higher peak speed, peak pressure and higher turbulence intensity through polishing solution grit stream self-excited oscillation characteristic and improve the machining efficiency of low viscosity grit stream polishing method, accomplish finally to internal surface high efficiency, high-quality polishing;
in the preferred embodiment of the present invention, the nozzle main body 9 includes a water inlet end and a water outlet end which are opposite to each other, the water inlet end is provided with a water inlet 1, the water outlet end is provided with a water outlet 8, the water inlet 1 and the water outlet 8 are linearly communicated with the oscillation pulse cavity, the water inlet 1 and the water outlet 8 are both provided with pipe threads, the water outlet 8 is provided with a second fixed flange plate 7, the edge of the water outlet 8 on the nozzle main body 9 is connected and locked with the second fixed flange plate 7 through bolts and nuts, and the threaded connection relationship enables the whole body to have a detachable function;
a water inlet channel extends from the water inlet 1 to the oscillation pulse cavity, the end, close to the water inlet 1, of the water inlet channel contracts, the first resonant cavity 4 and the second resonant cavity 6 are both conical impinging angle resonant cavities, the ratio of the cavity length to the cavity diameter of the first resonant cavity 4/the second resonant cavity 6 is 0.5, and the conical impinging angle is 60 degrees; the ratio of the pipe diameter of the contraction section of the water inlet 1 to the pipe diameter of the communication channel 5 is 1.6, and the ratio of the pipe diameter of the communication channel 5 to the pipe diameter of the water outlet 8 is 1.6.
The utility model discloses in the preferred embodiment, the cover is equipped with first mounting flange board 3 on the water inlet 1, it is equipped with lock nut 2 still to overlap on the water inlet 1, lock nut 2 is the threaded connection relation with 1 department of water inlet, lock nut 2 will first mounting flange board 3 presss from both sides tightly.
The working principle of the self-oscillation pulse abrasive flow nozzle for polishing and grinding is as follows:
when polishing liquid fluid with a certain speed enters the water inlet 1 of the self-oscillation generator, because the cavity is filled with relatively static fluid, the polishing liquid flow beams moving at a high speed and the static fluid generate a turbulent mixing phenomenon and generate momentum exchange to generate an unstable shearing layer, and because the unstable shearing layer has the function of selective amplification, the fluid near the shearing layer is sucked by a scroll to generate an axisymmetric vortex ring with a large scale. The vortex ring is called a regular axisymmetric disturbance wave. The formed vortex ring wave moves downstream and collides with the downstream collision wall of the first resonant cavity 4 to form a pressure disturbance wave and flows upstream at a certain wave speed, and a new vortex pulsation is induced and generated near the upper nozzle in the shear layer separation area. When the newly generated vortex pulsation has a certain phase relation with the original vortex ring wave, the upstream of the nozzle is continuously and periodically excited, the inherent waveform is modulated, self-oscillation of fluid is formed in the cavity, self-oscillation pulse characteristic abrasive particle flow is generated at the outlet of the lower nozzle, and the forming process is repeated continuously, so that a strong self-oscillation pulse effect can be generated. The oscillating jet then enters the second cavity 6, which in the same way is amplified again to obtain a stronger pulsed jet. Under the strong turbulent action of the polishing liquid flow beam and the comprehensive action of the above conditions, the abrasive particles irregularly move at high speed near the wall surface area, and further generate various collisions and frictions with the surface to be processed, so that the effect of removing the material on the surface of the part is realized.
By integrating the description of the above embodiment, the self-oscillation pulse abrasive flow nozzle for polishing and grinding provided by the utility model has the advantages that a second-stage oscillation cavity is added on the basis of a single cavity, and compared with the single cavity, the nozzle has better turbulence characteristic, so that the polishing efficiency is further improved; the utility model discloses in, this nozzle combines fluidic self-excited oscillation mechanism and the mechanism of the polishing of soft grit granule, utilizes the polishing solution that mixes stereoplasm solid grit granule and fluidic profile modeling nature to process the internal surface of various die cavity structures to produce higher peak speed, peak pressure and higher turbulence intensity through polishing solution grit stream self-excited oscillation characteristic and improve the machining efficiency of low viscosity grit stream polishing method, accomplish finally to internal surface high efficiency, high-quality polishing; the utility model discloses self-oscillation generating device possesses nozzle simple structure, the volume is less, easy dismounting, and the security is high, advantage such as the cost is lower, generally speaking the nozzle inner chamber structure of utility makes the abrasive particle stream form the pulsed and assaults, has reduced the abrasive particle stream on the one hand and has assaulted thin wall hole spare under direct high pressure, to the damage that thin wall hole spare caused, on the other hand utilizes the pulsed to assault and to carry out more thorough clearance or polishing to the spare part surface.
The above description is only for the specific embodiments of the present invention, but the protection 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 should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The self-oscillation pulse abrasive particle flow nozzle is characterized by comprising a nozzle main body (9) and an oscillation pulse cavity arranged in the nozzle main body (9), wherein the oscillation pulse cavity comprises a first resonant cavity (4), a communicating channel (5) and a second resonant cavity (6), the first resonant cavity (4), the communicating channel (5) and the second resonant cavity (6) are communicated with each other, the first resonant cavity (4), the communicating channel (5) and the second resonant cavity (6) are sequentially arranged in the nozzle main body (9), the communicating channel (5) is communicated with the first resonant cavity (4) and the second resonant cavity (6), and the first resonant cavity (4) and the second resonant cavity (6) are conical impact angle resonant cavities.
2. A self-oscillating pulsed abrasive particle stream nozzle for polishing and grinding according to claim 1, characterized in that the nozzle body (9) comprises opposite water inlet end and water outlet end, the water inlet end is provided with a water inlet (1), the water outlet end is provided with a water outlet (8), and the water inlet (1) and the water outlet (8) are in linear communication with the oscillating pulse chamber.
3. A self-oscillating pulsed abrasive particle stream nozzle for polishing and grinding according to claim 2, characterized in that both the water inlet (1) and the water outlet (8) are provided with a pipe thread.
4. A self-oscillation pulse abrasive flow nozzle for polishing and grinding according to claim 3, characterized in that a first fixed flange plate (3) is sleeved on the water inlet (1), a locking nut (2) is further sleeved on the water inlet (1), the locking nut (2) is in threaded connection with the water inlet (1), and the locking nut (2) clamps the first fixed flange plate (3).
5. The self-oscillation pulse abrasive flow nozzle for polishing and grinding as claimed in claim 3, wherein a second fixed flange plate (7) is provided on the water outlet (8), and the edge of the water outlet (8) on the nozzle body (9) is connected and locked with the second fixed flange plate (7) through bolts and nuts.
6. A self-oscillating impulse abrasive flow nozzle for polishing and grinding according to claim 2, characterized in that said water inlet (1) has a water inlet channel extending into said oscillation pulse chamber, said water inlet channel being constricted near said water inlet (1).
7. The self-oscillation pulse abrasive particle flow nozzle for polishing and grinding as claimed in claim 2, wherein the water inlet (1), the first resonant cavity (4), the communication channel (5), the second resonant cavity (6) and the water outlet (8) are hollow cylindrical cavities connected in sequence.
8. A self-oscillating pulsed abrasive flow nozzle for polishing and grinding according to claim 1, characterized in that the first resonant cavity (4) and the second resonant cavity (6) are both cone impingement angle resonant cavities, and the ratio of the cavity length to the cavity diameter of the first resonant cavity (4)/the second resonant cavity (6) is 0.5, and the cone impingement angle is 60 °.
9. The self-oscillation pulse abrasive particle flow nozzle for polishing and grinding according to claim 6, wherein the ratio of the pipe diameter of the contraction section of the water inlet (1) to the pipe diameter of the communication channel (5) is 1.6, and the ratio of the pipe diameter of the communication channel (5) to the pipe diameter of the water outlet (8) is 1.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222859792.0U CN218254642U (en) | 2022-10-28 | 2022-10-28 | Self-oscillation pulse abrasive flow nozzle for polishing and grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222859792.0U CN218254642U (en) | 2022-10-28 | 2022-10-28 | Self-oscillation pulse abrasive flow nozzle for polishing and grinding |
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| Publication Number | Publication Date |
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| CN218254642U true CN218254642U (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222859792.0U Active CN218254642U (en) | 2022-10-28 | 2022-10-28 | Self-oscillation pulse abrasive flow nozzle for polishing and grinding |
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| CN (1) | CN218254642U (en) |
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- 2022-10-28 CN CN202222859792.0U patent/CN218254642U/en active Active
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