JP4106523B2 - High pressure fluid injection nozzle, deburring device and cleaning device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a high-pressure fluid injection nozzle that injects high-pressure fluid supplied into a cylindrical nozzle body from an injection port equipped on the outer peripheral surface of the nozzle body, and a deburring device using the high-pressure fluid injection nozzle. More particularly, the present invention relates to an improvement for improving the working efficiency of deburring and cleaning with a high-pressure fluid.
[0002]
[Prior art]
14 to 17 show a conventional example of a high-pressure fluid injection nozzle used in a deburring device or a cleaning device.
The high-pressure fluid injection nozzles 1, 2, 3, and 4 shown in these figures are disclosed in Japanese Patent Laid-Open No. 13-105246.
[0003]
These high-pressure fluid injection nozzles 1, 2, 3, and 4 each have a high-pressure fluid injection direction at one point 11a, 12a, 13a, and 12a on the central axis of the cylindrical nozzle bodies 11, 12, 13, and 14. A plurality of injection ports 11b, 12b, 13b, and 14b are provided on the outer peripheral surfaces of the nozzle bodies 11, 12, 13, and 14 so as to be radial with respect to 14a.
[0004]
[Problems to be solved by the invention]
However, in the high-pressure fluid injection nozzle 4 shown in FIG. 17, for example, when used in a deburring device, the collision direction of the high-pressure fluid against the surface of the workpiece to be deburred is limited to the horizontal direction, and the landing of the high-pressure fluid Because the impact load applied by the pressure is limited to a certain direction, depending on the burr protrusion form on the workpiece surface, the impact of the high pressure fluid will only work in the direction of crushing the burr, and the fluid injection pressure will not be so high As long as there is a problem that it is difficult to cut and remove burrs cleanly from the base.
[0005]
Further, the high-pressure fluid injection nozzle 4 in which the injection direction of the high-pressure fluid is limited to only the horizontal direction is such that even when the foreign matter adhering to the surface of the workpiece is cleaned, the impact load is constant in the direction as described above. Since the peeling action exerted on the material is weak, there has been a problem that it is difficult to completely remove and remove foreign substances that are firmly attached unless the fluid jet pressure is set at a very high pressure.
[0006]
On the other hand, the high-pressure fluid injection nozzles 1, 2, and 3 shown in FIGS. 14 to 16 include a plurality of injection ports 11b, 12b, and 13b having different injection angles of the high-pressure fluid. As shown in (a) and (b), by switching the injection port used by the relative rotation between the high pressure fluid injection nozzle and the workpiece 6 from the upward injection type to the downward injection type, The direction of the applied impact load can be switched. When such a direction change of the impact load is performed, a shear load from a plurality of directions can be applied to the burr base on the workpiece, and the burr can be cut and removed cleanly from the root.
[0007]
However, in the case of these high-pressure fluid injection nozzles 1, 2, and 3, as shown in FIG. 18, in order to change the landing direction of the high-pressure fluid relative to the burr 6 a on the workpiece 6, A relative displacement along the central axis direction of the high-pressure fluid jet nozzle must be applied between the workpiece 6 and the relative displacement distance L1 is larger than the existence range L0 of the burr 6a on the workpiece 6. For this reason, it has been pointed out that the relative displacement takes a long time, resulting in an increase in processing time, a decrease in processing efficiency, and an increase in the amount of high-pressure fluid consumed.
[0008]
Further, in the case of the high pressure fluid injection nozzles 1, 2, and 3 described above, when used for cleaning the work surface, the separation and removal performance of foreign matters can be improved by switching the injection direction, but as in the case of deburring. Furthermore, due to the elapsed time required for the relative displacement along the central axis direction of the high-pressure fluid injection nozzle at the time of switching the injection direction, the processing time becomes longer, the processing efficiency decreases, and the amount of high-pressure fluid consumed increases. Invited problems.
[0009]
The present invention has been made in view of the above-mentioned problems, and its purpose is to cut and remove burrs protruding on the work surface and foreign matters adhering to the work surface by jetting high-pressure fluid from a plurality of directions. The separation and removal performance of the high-pressure fluid injection nozzle between the workpiece and the high-pressure fluid injection nozzle can be reduced relative to the size of the processing area on the workpiece. Therefore, by shortening the time required for relative displacement, the processing time required for the deburring process and cleaning process can be shortened, the processing efficiency can be improved, and the amount of high-pressure fluid consumed can be saved. It is to provide an apparatus and a cleaning apparatus.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the high-pressure fluid injection nozzle according to the present invention has a cylindrical nozzle body provided with a plurality of injection ports for simultaneously injecting high-pressure fluid, as described in claim 1 . A high-pressure fluid injection nozzle that injects a high-pressure fluid supplied into a nozzle body from a plurality of different directions at the same location on a workpiece that rotates relative to the central axis of the nozzle body . , At least two nozzle deployment reference circumferences spaced in the direction of the center axis across a landing standard surface orthogonal to the center axis are set, and the injection port is located on the nozzle deployment reference circumference of the nozzle body disposed, the fluid injection angle of all of the injection openings is set so that the high pressure fluid lands on or near one of the landing circumference concentric yen of the nozzle body on the landing standard surface that is injected The And wherein the are.
[0011]
Incidentally, preferably, as described in claim 2, in the high pressure fluid jet nozzle, the outer peripheral surface of the nozzle body intersecting the landing standard surface, is further set to the reference circumference for the nozzle deployment, this It is good to set it as the structure by which the said injection port is arrange | positioned also on the reference | standard circumference for nozzle arrangement | positioning .
Further, preferably, as described in claim 3, in the high pressure fluid ejecting nozzles, one of the nozzles deployment reference circumference being arranged on a plurality of injection openings are spaced at approximately equal intervals in the circumferential direction It is good to have a configuration that is arranged .
[0012]
And in order to achieve the said objective, the deburring apparatus which concerns on this invention is the high pressure fluid which the high pressure fluid injection nozzle in any one of Claim 1 thru | or 3 injects. Is deburred on the surface of the workpiece by landing on the surface of the workpiece positioned on the landing circumference.
[0013]
Moreover, in order to achieve the said objective, the washing | cleaning apparatus which concerns on this invention is the high pressure fluid which the high pressure fluid injection nozzle in any one of Claim 1 thru | or 3 injects. The surface of the workpiece is washed by landing on the surface of the workpiece located on the landing circumference.
[0014]
In the high-pressure fluid injection nozzle configured as described above, the high-pressure fluid injected from the plurality of injection ports on the outer peripheral surface of the nozzle main body while shifting the position in the central axis direction of the cylindrical nozzle main body, Lands on or near the landing circle on the landing standard surface perpendicular to the central axis of the nozzle body.
For this reason, in the deburring device and the cleaning device using the above-described high pressure fluid injection nozzle, substantially the same landing on the workpiece can be achieved without relatively displacing the workpiece and the high pressure fluid injection nozzle in the central axis direction of the high pressure fluid injection nozzle. High pressure fluids from multiple directions land on the circumference.
Accordingly, by jetting high-pressure fluid from multiple directions, impacts in multiple directions can be applied to burrs protruding from the workpiece surface and foreign matter adhering to the workpiece surface, and the destructive force due to landing of the high-pressure fluid is greatly increased. For this reason, it is possible to improve the cutting and removal performance against burrs and the separation and removal performance of foreign matters adhering to the workpiece surface.
[0015]
Further, in the high-pressure fluid injection nozzle having the above-described configuration, the high-pressure fluid injected from the plurality of injection ports on the outer peripheral surface of the nozzle body while shifting the position in the central axis direction of the cylindrical nozzle body is the nozzle. The amount of relative displacement along the central axis of the high-pressure fluid injection nozzle between the workpiece and the high-pressure fluid injection nozzle is the difference between the workpiece and the high-pressure fluid injection nozzle. The size of the upper processing area can be reduced.
Therefore, by reducing the amount of relative displacement between the workpiece and the high-pressure fluid injection nozzle and shortening the time required for relative displacement, the processing time required for the deburring process and the cleaning process is shortened, the processing efficiency is improved, and consumption is performed. The amount of high-pressure fluid can be saved.
[0016]
In addition, by adopting the configuration according to claim 2 and claim 3, the landing direction and the number of landing points of the high-pressure fluid on the same landing circumference are increased, thereby speeding up and strengthening the processing. can do.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a high-pressure fluid injection nozzle, a deburring device, and a cleaning device according to the present invention will be described in detail with reference to the drawings.
1 and 2 show a first embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
[0018]
The high-pressure fluid jet nozzle 21 of the first embodiment is spaced apart in the central axis direction on the outer peripheral surface of the cylindrical nozzle body 23 with the landing standard surface P ₀ orthogonal to the central axis of the nozzle body 23 interposed therebetween. The nozzles n ₁ and m ₁ for injecting the high-pressure fluid supplied into the nozzle main body 23 are respectively provided on the two nozzle deployment reference circumferences C ₁ and C ₂ , and each of the nozzles n _{1 is provided.} , m _1, as the injected high-pressure fluid is landed on the landing standard plane P ₀ onto the nozzle body 23 and substantially concentric landing on the circumference C _p, is the fluid injection angle theta _1, alpha ₁ is set .
[0019]
In the case of the present embodiment, the spaced distances from the landing standard surface P _{0 of} the nozzle deployment reference circumferences C ₁ and C ₂ are set equal. Therefore, the fluid ejection angles θ ₁ and α ₁ are θ ₁ = α ₁ .
In FIG. 1, the landing point X ₁ on the landing circumference C _p is for the injection port n ₁ , and the landing point Y ₁ is for the injection port m ₁ .
[0020]
Further, in order to cancel the reaction force at the time of high-pressure fluid injection from each of the injection ports n ₁ and m ₁ , each of the injection ports n ₁ and m ₁ is provided at a diametrically opposed position of the nozzle body 23. .
[0021]
In the high-pressure fluid injection nozzle 21 configured in this way, the two injection ports n ₁ and m ₁ provided on the outer peripheral surface of the nozzle body 23 are shifted in the central axis direction of the cylindrical nozzle body 23. All of the high-pressure fluid ejected from the nozzles land on the landing circumference C _p on the landing standard surface P ₀ orthogonal to the central axis of the nozzle body 23.
For this reason, in the deburring device and the cleaning device using the high-pressure fluid injection nozzle 21 described above, the workpiece and the high-pressure fluid injection nozzle 21 are not substantially displaced in the central axis direction of the high-pressure fluid injection nozzle 21, so High-pressure fluids from a plurality of directions land on the same landing circumference C _p .
[0022]
Therefore, by spraying high-pressure fluid from multiple directions, impacts in multiple directions can be applied to burrs protruding from the workpiece surface and foreign matter adhering to the workpiece surface, and the destructive force due to the landing of high-pressure fluid is greatly increased. Therefore, it is possible to improve the cutting and removal performance against burrs and the separation and removal performance of foreign matters adhering to the workpiece surface, and an excellent deburring ability and cleaning ability can be obtained.
Further, when the high-pressure fluid injection nozzle 21 having the above-described configuration is used, the injection is performed from a plurality of injection ports n ₁ and m ₁ on the outer peripheral surface of the nozzle body 23 by shifting the position in the central axis direction of the cylindrical nozzle body 23. As shown in FIG. 3, since the high pressure fluid to be landed on the landing circumference C _p on the landing standard surface P ₀ orthogonal to the central axis of the nozzle body 23, the workpiece 6 and the high pressure fluid injection nozzle The relative displacement L ₂ along the direction of the central axis of the high-pressure fluid injection nozzle 21 with the nozzle 21 can be reduced to about the size L ₀ of the processing area on the workpiece.
Accordingly, the amount of relative displacement between the workpiece and the high-pressure fluid jet nozzle 21 is reduced, and the elapsed time required for the relative displacement is shortened, thereby shortening the processing time required for the deburring process and the cleaning process, and improving the processing efficiency. The amount of high-pressure fluid to be consumed can be saved.
[0024]
FIG. 4 shows a second embodiment of the high-pressure fluid injection nozzle used in the deburring device and the cleaning device according to the present invention.
The high-pressure fluid injection nozzle 25 according to the second embodiment is obtained by improving a part of the high-pressure fluid injection nozzle 21 according to the first embodiment, and has two nozzle deployment reference circumferences C ₁ and C ₂ . It has additional equipment the injection port n _2, m _2, respectively.
And the injection ports on the same reference | standard circumference are equipped in the position which divides | segments a circumference equally by the quantity of injection ports.
Also, consideration is given so that the positions of the injection ports are not aligned between different reference circles.
In FIG. 4, the landing point X ₂ on the landing circumference C _p is for the injection port n ₂ , and the landing point Y ₂ is for the injection port m ₂ .
[0025]
In the second embodiment, the landing direction and the number of landing locations of the high-pressure fluid on the same landing circumference Cp are increased, whereby the processing can be further speeded up and strengthened.
[0026]
FIG. 5 shows a third embodiment of the high-pressure fluid injection nozzle used in the deburring device and the cleaning device according to the present invention.
The high-pressure fluid injection nozzle 27 of the third embodiment is obtained by further adding an injection port to the high-pressure fluid injection nozzle 25 of the second embodiment.
In the high-pressure fluid injection nozzle 27 of the third embodiment, the injection ports n ₃ and n ₄ are added on the upper nozzle deployment reference circumference C ₁ , thereby landing on the landing circumference C _p. A point X ₃ and a landing point X ₄ are added.
Further, the injection ports on the upper nozzle deployment reference circumference C ₁ are equipped at positions where the circumference is equally divided by the number 4 of the injection ports.
In addition, consideration is given so that the positions of the injection ports are not aligned between different reference circles.
[0027]
In the third embodiment, the landing direction and the number of landing locations of the high-pressure fluid on the same landing circumference Cp are further increased compared to the second embodiment, thereby further speeding up the processing. Can be strengthened.
[0028]
FIG. 6 shows a fourth embodiment of the high-pressure fluid injection nozzle used in the deburring device and the cleaning device according to the present invention.
The high-pressure fluid injection nozzle 29 according to the fourth embodiment is obtained by improving a part of the high-pressure fluid injection nozzle 21 according to the first embodiment, and the outer peripheral surface of the nozzle body 23 where the landing standard surface P ₀ intersects. Further, a nozzle deployment reference circumference C ₃ is additionally set, and two injections are performed on the nozzle deployment reference circumference C ₃ to inject a high-pressure fluid in a substantially horizontal direction toward the landing circumference C _p. Mouths f ₁ and f ₂ are additionally provided.
[0029]
Due to the additional equipment of these injection ports f ₁ and f ₂ , landing points Z ₁ and Z ₂ are added on the landing circumference C _p .
In this way, by adding the nozzle deployment reference circumference C ₃ , it is possible to further increase the jetting direction of the high-pressure fluid and further improve the processing capability for deburring and cleaning.
[0030]
FIG. 7 shows a fifth embodiment of the high-pressure fluid injection nozzle used in the deburring device and the cleaning device according to the present invention.
The high-pressure fluid injection nozzle 31 of the fifth embodiment is an improved part of the high-pressure fluid injection nozzle 25 of the second embodiment, and the outer peripheral surface of the nozzle main body 23 where the landing standard surface P ₀ intersects. Further, a nozzle deployment reference circumference C ₃ is additionally set, and two injections are performed on the nozzle deployment reference circumference C ₃ to inject a high-pressure fluid in a substantially horizontal direction toward the landing circumference C _p. Mouths f ₁ and f ₂ are additionally provided.
[0031]
FIG. 8 shows a sixth embodiment of the high-pressure fluid injection nozzle used in the deburring device and cleaning device according to the present invention.
The high-pressure fluid injection nozzle 33 of the sixth embodiment is obtained by improving a part of the high-pressure fluid injection nozzle 21 of the first embodiment, and has two nozzle deployment reference circumferences C ₁ and C ₂ . The separation distances from the landing standard surface P ₀ are different.
Therefore, as shown in FIG. 9, the fluid ejection angles θ ₁ and α ₁ are θ ₁ ≠ α ₁ .
As shown in the sixth embodiment, the distance between the nozzle deployment reference circumferences C ₁ and C _{2 from} the landing standard surface P ₀ does not significantly impair the counteracting reaction force against the injection of the high-pressure fluid. If so, they can be appropriately differentiated.
In this way, with respect to specific deburring and cleaning, it is possible to enhance the operational effect by selecting an optimum injection angle in accordance with the form of burrs and the state of dirt.
[0032]
FIG. 10 shows a seventh embodiment of the high-pressure fluid injection nozzle used in the deburring device and the cleaning device according to the present invention.
The high pressure fluid injection nozzle 35 according to the seventh embodiment is based on the technical idea that the two nozzle deployment reference circumferences C ₁ and C ₂ are different in distance from the landing standard surface P ₀ . This is in addition to the high-pressure fluid injection nozzle 25 of the embodiment.
[0033]
FIG. 11 shows an eighth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
The high-pressure fluid injection nozzle 37 according to the eighth embodiment has a technical idea of making the two nozzle disposition reference circumferences C ₁ and C ₂ different in distance from the landing standard surface P ₀ , according to the fifth concept. This is added to the high pressure fluid injection nozzle 31 of the embodiment.
[0034]
FIG. 12 shows a ninth embodiment of the high-pressure fluid injection nozzle used in the deburring device and cleaning device according to the present invention.
The high-pressure fluid injection nozzle 35 of the ninth embodiment is one nozzle deployment reference circumference C _{1 with} respect to the landing standard surface P _{0 with} respect to the high-pressure fluid injection nozzle 25 shown in the second embodiment. The nozzle deployment reference circumference C ₄ is added on the same side as the separation distance from the landing standard surface P ₀ , and the two injection ports g ₁ are added on the nozzle deployment reference circumference C _4. , G ₂ are added. In any of the injection ports g ₁ and g ₂ , the injection angle is set so that the injected high-pressure fluid is landed on the landing circumference C _p .
In FIG. 12, the landing points W ₁ and W ₂ on the landing circumference C _p correspond to the injection ports g ₁ and g ₂ .
Thus, the reference circumference for nozzle deployment can be increased or decreased to an appropriate number of two or more locations according to the required deburring capability and cleaning capability.
[0035]
FIG. 13 shows a tenth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
The high-pressure fluid injection nozzle 41 of the tenth embodiment is an improvement of the high-pressure fluid injection nozzle 21 shown in the first embodiment, and n of _two nozzle deployment reference circumferences C ₁ and C ₂ . The landing positions from ₁ and m ₁ are set on dedicated landing circumferences C _p1 and C _p2 , respectively. These landing circumferences C _p1 and C _p2 have the same diameter and are close to each other in the axial distance of the nozzle body.
As described above, the effect of the present invention can be obtained even if each nozzle deployment reference circumference does not have to be a single landing circumference.
[0036]
In the above deburring device and cleaning device according to the present invention, the surface of the workpiece is usually deburred or cleaned in the circumferential direction while relatively rotating the workpiece and the high-pressure fluid jet nozzle, but the nozzle is rotated, In order to cope with high pressure, it is necessary to rotate it with a substantial seal, but at present it can be applied up to high pressure by O-ring + flange stop + work rotation. Therefore, it is easier to rotate the workpiece due to structural problems.
[0037]
Further, the relative displacement in the axial direction between the workpiece and the high-pressure fluid ejection nozzle may move either the workpiece or the high-pressure fluid ejection nozzle, or both may be configured to be movable in the axial direction.
[0038]
In general, a liquid such as water or oil is used as the high-pressure fluid, but a gas, a solid mixed gas, or the like can be used as necessary.
Further, the high-pressure fluid injection nozzle of the present invention is not limited to a deburring device and a cleaning device, but can also be applied to a surface treatment device that processes a workpiece surface by sandblasting.
[0039]
【The invention's effect】
As described above, in the high-pressure fluid injection nozzle according to the first aspect of the present invention, the nozzle body is displaced in the central axis direction of the cylindrical nozzle body from a plurality of injection holes on the outer peripheral surface of the nozzle body. Any high-pressure fluid to be ejected is landed on or near the landing circle on the landing standard surface orthogonal to the central axis of the nozzle body.
Therefore, in the deburring device according to claim 4 and the cleaning device according to claim 5 using the high-pressure fluid injection nozzle, the workpiece and the high-pressure fluid injection nozzle are relatively arranged in the central axis direction of the high-pressure fluid injection nozzle. Even without displacement, high-pressure fluids from a plurality of directions land on substantially the same landing circle on the workpiece.
Therefore, by jetting high-pressure fluid from multiple directions, impacts in multiple directions can be applied to burrs protruding from the workpiece surface and foreign matter adhering to the workpiece surface, and the destructive force due to landing of high-pressure fluid is greatly increased. Further, it is possible to improve the cutting and removing performance against burrs and the peeling and removing performance of foreign matters adhering to the workpiece surface.
[0040]
Further, in the deburring device according to claim 4 and the cleaning device according to claim 5 using the high-pressure fluid injection nozzle according to claim 1, the position is shifted in the central axis direction of the cylindrical nozzle body. Since all of the high-pressure fluids ejected from the plurality of ejection ports on the outer peripheral surface of the nozzle body land on or near the landing circle on the landing standard surface orthogonal to the central axis of the nozzle body, The relative displacement amount along the central axis direction of the high-pressure fluid ejection nozzle between the high-pressure fluid ejection nozzle and the high-pressure fluid ejection nozzle can be reduced to about the size of the processing area on the workpiece.
Therefore, by reducing the amount of relative displacement between the workpiece and the high-pressure fluid injection nozzle and shortening the elapsed time for the relative displacement, the processing time required for the deburring process and the cleaning process is shortened, and the processing efficiency is improved. The amount of high-pressure fluid to be consumed can be saved.
[0041]
Further, in the deburring device according to claim 4 or the cleaning device according to claim 5, the high-pressure fluid injection nozzle to be used has the same configuration as that of claim 2 or claim 3 so that the same landing circle is obtained. The landing direction and the number of landing points of the high-pressure fluid on the circumference increase, thereby making it possible to speed up and strengthen the processing.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a schematic configuration of a first embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 2 is a side view of the high-pressure fluid injection nozzle shown in FIG.
FIG. 3 is an explanatory diagram of a relative displacement amount in the central axis direction necessary for deburring by jetting high-pressure fluid from a plurality of directions with the high-pressure fluid jet nozzle shown in FIG. 1;
FIG. 4 is a perspective view showing a schematic configuration of a second embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 5 is a perspective view showing a schematic configuration of a third embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 6 is a perspective view showing a schematic configuration of a fourth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 7 is a perspective view showing a schematic configuration of a fifth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 8 is a perspective view showing a schematic configuration of a sixth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 9 is a side view of the high-pressure fluid injection nozzle shown in FIG.
FIG. 10 is a perspective view showing a schematic configuration of a seventh embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 11 is a perspective view showing a schematic configuration of an eighth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 12 is a perspective view showing a schematic configuration of a ninth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 13 is a perspective view showing a schematic configuration of a tenth embodiment of a high-pressure fluid injection nozzle used in a deburring device and a cleaning device according to the present invention.
FIG. 14 is a longitudinal sectional view showing a schematic configuration of a first example of a conventional high-pressure fluid injection nozzle.
FIG. 15 is a longitudinal sectional view showing a schematic configuration of a second example of a conventional high-pressure fluid injection nozzle.
FIG. 16 is a longitudinal sectional view showing a schematic configuration of a third example of a conventional high-pressure fluid injection nozzle.
FIG. 17 is a longitudinal sectional view showing a schematic configuration of a fourth example of a conventional high-pressure fluid injection nozzle.
18 is an explanatory diagram of a relative displacement amount in the central axis direction necessary for deburring by jetting high-pressure fluid from a plurality of directions in the conventional high-pressure fluid jet nozzle shown in FIG.
[Explanation of symbols]
21 High Pressure Fluid Injection Nozzle 23 Nozzle Body P ₀ Landing Standard Surface C ₁ , C ₂ , C ₃ , C ₄ Nozzle Reference Circumference C _p Landing Circumference θ ₁ , α ₁ Fluid Injection Angle n ₁ , m ₁ Injection Port X ₁ , X ₂ , Y ₁ , Y ₂ , Z ₁ , Z ₂ landing points

Claims (5)

It has a cylindrical nozzle body provided with a plurality of injection ports for simultaneously injecting high-pressure fluid, and is supplied into the nozzle body at the same location on the workpiece that rotates relative to the central axis of the nozzle body. A high-pressure fluid injection nozzle for injecting high-pressure fluid from a plurality of different directions,
In the nozzle body , at least two nozzle deployment reference circumferences spaced apart in the central axis direction across a landing standard surface orthogonal to the central axis are set,
The ejection port is disposed on the nozzle deployment reference circumference of the nozzle body, and the fluid ejection angles of all the ejection ports are such that the ejected high-pressure fluid is concentric to one of the nozzle bodies on the landing standard surface. high pressure fluid ejecting nozzles, characterized in that is configured to land on or near the landing circumference is a circle. The outer peripheral surface of the nozzle body intersecting the landing standard surface is further configured to reference circumference for the nozzle deployment, and wherein the injection port is disposed in the nozzle deployment reference circumference on The high pressure fluid injection nozzle according to claim 1. One of the nozzle deployment criteria plurality arranged on a circumference the injection port, a high pressure according to claim 1 or claim 2, characterized in that it is spaced at approximately equal intervals in the circumferential direction Fluid injection nozzle. Deburring the surface of the workpiece by causing the high-pressure fluid ejected by the high-pressure fluid ejection nozzle according to any one of claims 1 to 3 to land on the surface of the workpiece located on the landing circumference. Deburring device characterized by. Washing the surface of the workpiece by causing the high-pressure fluid ejected by the high-pressure fluid ejection nozzle according to any one of claims 1 to 3 to land on the surface of the workpiece positioned on the landing circumference. Characteristic cleaning device.

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