Water wall nozzle based on electrojet mask processing

Abstract

The utility model relates to a water wall spray head based on electrojet mask processing, which comprises a spray head main body, a liquid flow cavity is arranged in the spray head main body, two ends of the spray head main body are respectively provided with a first liquid inlet and a second liquid inlet, the outer side wall of the spray head main body is provided with a groove-shaped liquid outlet, and the first liquid inlet is communicated with the second liquid inlet. And the liquid outlet is formed in the direction from the first liquid inlet to the second liquid inlet. The liquid outlet of the spray head body is in the groove shape, the groove-shaped liquid outlet can guarantee radial continuity of liquid sprayed out of the spray head body and can also guarantee uniform and stable distribution in the axial direction, the pressure requirement of jet flow electrolytic machining can be met, water wall-shaped liquid flows out of the groove-shaped liquid outlet, and the water wall-shaped liquid can flow out of the groove-shaped liquid outlet. Uniform, stable and continuous liquid flow can be formed; the groove-shaped liquid outlet is simple in structure, compared with a front-back staggered and tangent U-shaped row-shaped structure, the groove-shaped liquid outlet is easy and convenient to machine, the corresponding machining process requirement is low, and therefore the manufacturing cost is low.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrojet mask processing, and in particular to a water wall nozzle based on electrojet mask processing. Background Art

[0002] Electrojet mask processing is a type of electrolytic processing. It dissolves the metal in the electrolyte jet environment by applying an external voltage. Its processing platform mainly includes: cathode nozzle system, anode clamp system, electrolyte circulation system and simple CNC platform. The cathode nozzle system can avoid the problems of microelectrode manufacturing and assembly difficulties in traditional electrolytic processing, making it possible to manufacture large-scale dense surface textures. Existing cathode nozzle systems include capillary electrodes, capillary row electrodes and single nozzles based on electrojet mask processing; however, the current cathode nozzle system has the defects of being difficult to manufacture, difficult to clamp, poor flexibility, low processing efficiency and poor processing consistency.

[0003] In order to solve the above problems, the inventor proposed a water curtain nozzle based on electrojet mask processing disclosed in patent CN201720737957.3, including a cylindrical nozzle cavity, a row of liquid outlets are provided on the outer wall of the bottom of the nozzle cavity and along the length direction of the nozzle cavity, a first liquid inlet is provided at one end of the nozzle cavity, and a second liquid inlet is provided at the other end of the nozzle cavity, and the bottoms of the inner walls of the first liquid inlet and the second liquid inlet are both flush with the upper surface of each of the liquid outlets. When the water curtain nozzle is used, the first liquid inlet and the second liquid inlet are respectively connected to the liquid supply pipe, and the electrolyte flows into the nozzle cavity in a flowing state through the first liquid inlet and the second liquid inlet, and the electrolyte flows out through the row of liquid outlets, thereby forming a jet electrolytic machining water curtain, so that the jet machining can flexibly adapt to the machining workpieces with different mask structures, increasing the flexibility of jet electrolytic machining. However, the above-mentioned water curtain nozzle based on electrojet mask processing still has the following defects in practical applications:

[0004] The liquid outlets are arranged in two staggered rows, that is, U-shaped rows of liquid outlets that are staggered and tangent to each other. The liquid outlets in this structure may cause uneven water output, and the staggered positions may cause little water output or even no water output, so that the pressure requirements of jet electrolytic machining may not be met; and the U-shaped row structure that is staggered and tangent to each other is complex to process, and the corresponding processing technology requirements are high, which increases the manufacturing cost. Utility Model Content

[0005] In order to solve the problems existing in the above-mentioned prior art, the present disclosure aims to provide a water wall nozzle based on electrojet mask processing. The water wall nozzle based on electrojet mask processing has a slot-shaped liquid outlet, which can not only ensure the radial continuity of the liquid sprayed from the nozzle body, but also ensure uniform and stable distribution in the axial direction, and can meet the pressure requirements of jet electrolytic processing, so that the water discharged from the slot-shaped liquid outlet is a water wall-shaped liquid, which can form a uniform, stable and continuous liquid flow; the slot-shaped liquid outlet has a simple structure, and compared with the U-shaped row structure that is staggered and tangent to each other front and back, the slot-shaped liquid outlet is easy to process, and the corresponding processing technology requirements are lower, and thus the manufacturing cost is lower; and the inner walls of the first liquid inlet and the second liquid inlet on the side close to the liquid outlet are flush with the inner surface of the nozzle body on the side of the liquid outlet, so that the electrolyte enters the nozzle body from both ends at a shorter distance from the liquid outlet, and the liquid flows out through the slot-shaped liquid outlet, thereby forming a water wall-shaped liquid flow for jet processing, so that the jet processing can flexibly adapt to the processing workpieces with different mask structures, thereby increasing the flexibility of jet processing.

[0006] The water wall nozzle based on electrojet mask processing described in the present disclosure includes:

[0007] A nozzle body, wherein the interior of the nozzle body has a liquid flow cavity, the two ends of the nozzle body respectively have a first liquid inlet and a second liquid inlet, the outer wall of the nozzle body has a groove-shaped liquid outlet, and the liquid outlet is opened along the direction from the first liquid inlet to the second liquid inlet.

[0008] Preferably, both ends of the nozzle body have a first extension section and a second extension section extending outward, and the first extension section and the second extension section are respectively formed with the first liquid inlet and the second liquid inlet.

[0009] Preferably, the first liquid inlet and the second liquid inlet are arranged opposite to each other, and both the first liquid inlet and the second liquid inlet are arranged on a side close to the liquid outlet.

[0010] Preferably, the outer edge lines of the end surface projections of the first extension section and the second extension section are both inscribed in the outer edge line of the end surface projection of the nozzle body, and the inscribed point is located on the side close to the liquid outlet.

[0011] Preferably, the inner walls of the first extension section and the second extension section both have internal threads for connecting to a liquid supply pipeline.

[0012] Preferably, the inner walls of the first liquid inlet and the second liquid inlet on the side close to the liquid outlet are flush with the inner surface of the nozzle body on the side having the liquid outlet.

[0013] Preferably, the flow areas of the first extension section and the second extension section are equal, and the ratio of the flow area of ​​the nozzle body to the flow area of ​​the first extension section is 2:1.

[0014] Preferably, the ratio of the length of the nozzle body to the length of the liquid outlet is 5:4.

[0015] Preferably, the ratio of the cross-sectional area of ​​the liquid outlet to the sum of the cross-sectional areas of the first liquid inlet and the second liquid inlet is 1:3.

[0016] The water wall nozzle based on electrojet mask processing disclosed in the present invention has the following advantages:

[0017] 1. The water wall nozzle based on electrojet mask processing disclosed in the present invention has a liquid outlet that is groove-shaped. The groove-shaped liquid outlet can not only ensure the radial continuity of the electrolyte sprayed out by the nozzle body, but also ensure uniform and stable distribution in the axial direction, and can meet the pressure requirements of jet electrolytic processing, so that the electrolyte flowing out of the groove-shaped liquid outlet is a water wall-shaped liquid, which can form a uniform, stable and continuous liquid flow, and can be swept into the anode workpiece surface processing area in pieces, thereby expanding the processing area, meeting the requirements that the electrolyte jet is facing the processing area and is uniformly and stably distributed in the processing area, getting rid of the influence of the traditional micro-electro-liquid beam cathode nozzle that is difficult to manufacture and install on the accuracy of jet electrolytic processing, and improving the processing efficiency, so that the electrojet mask processing can be better applied to the field of large-scale manufacturing of surface micro-texturing; the groove-shaped liquid outlet has a simple structure. Compared with the U-shaped row structure that is staggered and tangent to each other front and back, the groove-shaped liquid outlet is easy to process, the corresponding processing technology requirements are low, and thus the manufacturing cost is low.

[0018] 2. The inner walls of the first liquid inlet and the second liquid inlet of a water wall nozzle based on electrojet mask processing disclosed in the present invention on the side close to the liquid outlet are flush with the inner surface of the nozzle body on the side of the liquid outlet, so that the electrolyte enters the nozzle body from both ends at a short distance from the liquid outlet, and has sufficient pressure to form a uniform, stable and continuous liquid flow, reducing the pressure reduction in the area near the liquid inlet caused by the flow mode similar to "parabolic motion" occurring at the liquid inlet due to the distance between the liquid inlet and the liquid outlet. The liquid flows out through the slot-shaped liquid outlet, thereby forming a water wall-shaped liquid for jet processing, so that the jet processing can flexibly adapt to the processing workpieces with different mask structures, increasing the flexibility of the jet processing; and the nozzle of this structure does not need to design a complex fixture and is easy to clamp, with high processing efficiency, can be used to manufacture large-scale surface textures, can flexibly adapt to the changes in the mask size of the anode workpiece surface, and can substantially improve the accuracy of mask jet electrolytic processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of a water wall nozzle based on electrojet mask processing described in the present disclosure;

[0020] Figure 2 yes Figure 1 sectional view of .

[0021] Description of reference numerals:

[0022] 10- nozzle body;

[0023] 20-liquid outlet;

[0024] 30- first extension section;

[0025] 40-Second extension section. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 2 As shown, the water wall nozzle based on electrojet mask processing described in the present disclosure includes:

[0027] A nozzle body 10, wherein the nozzle body 10 has a liquid flow cavity inside, and the two ends of the nozzle body 10 respectively have a first liquid inlet and a second liquid inlet, and the outer wall of the nozzle body 10 has a groove-shaped liquid outlet 20, and the liquid outlet 20 is opened in the direction from the first liquid inlet to the second liquid inlet;

[0028] The nozzle body 10 selects a cylindrical nozzle cavity. The use of a cylindrical nozzle cavity is more conducive to ensuring the uniformity of the flow field in the nozzle body 10 and is convenient for setting the liquid inlet; the liquid outlet 20 is arranged on the outer wall of the nozzle body 10, and is used to discharge the electrolyte in the nozzle body 10. The liquid outlet 20 is a slot-shaped through hole, that is, it is distributed in a straight line along the axial direction of the nozzle body 10, and the electrolyte is discharged along the slot-shaped liquid outlet in a uniform, continuous and stable water wall-shaped electrolyte; the first liquid inlet and the second liquid inlet are respectively arranged at both ends of the nozzle body 10, that is, the water is fed into the nozzle body 10 at both ends to ensure the uniformity of the electrolyte flow in the nozzle body 10;

[0029] The liquid outlet 20 of the slot-shaped through hole can not only ensure the radial continuity of the electrolyte sprayed from the nozzle body, but also ensure uniform and stable distribution in the axial direction, and can meet the pressure requirements of jet electrolytic processing, so that the electrolyte sprayed from the slot-shaped liquid outlet is similar to the shape of a water wall, forming a uniform, stable and continuous water-wall-like liquid flow, which can be swept into the processing area of ​​the anode workpiece surface in pieces, thereby expanding the processing area, improving the processing efficiency, and making the electrojet mask processing better applied to the field of large-scale manufacturing of surface micro-texturing.

[0030] Furthermore, in this embodiment, the two ends of the nozzle body 10 have a first extension section 30 and a second extension section 40 extending outward, and a first liquid inlet and a second liquid inlet are respectively formed on the first extension section 30 and the second extension section 40. The first extension section 30 and the second extension section 40 can be used to connect the liquid supply pipeline.

[0031] Furthermore, in this embodiment, the first liquid inlet and the second liquid inlet are arranged opposite to each other, and both are arranged on a side close to the liquid outlet 20. The oppositely arranged liquid inlets can allow the electrolyte to flow stably into the nozzle body 10, and the electrolyte flowing in from both ends can reach the liquid outlet 20 at the same time, avoiding the situation where the electrolyte is discharged unevenly from the liquid outlet 20.

[0032] Furthermore, in this embodiment, the outer edge lines of the end surface projections of the first extension section 30 and the second extension section 40 are both inscribed in the outer edge lines of the end surface projections of the nozzle body 10, and the inscribed point of intersection is located on the side close to the liquid outlet 20. That is, the first extension section 30 and the second extension section 40 are arranged close to the side of the nozzle body 10 having the liquid outlet 20, so that when the electrolyte flows into the nozzle body 10, the distance to the liquid outlet 20 is relatively close, which can ensure that the liquid outlet 20 continuously discharges the electrolyte, and reduce the situation where the electrolyte discharge is interrupted due to the long distance.

[0033] Furthermore, in this embodiment, the inner walls of the first extension section 30 and the second extension section 40 are provided with internal threads for connecting to the liquid supply pipe. The threaded connection facilitates the connection and allows the electrolyte to flow stably, thereby reducing the leakage of the electrolyte from the first extension section 30 or the second extension section 40, thereby reducing the uneven flow of the electrolyte flowing into the two ends.

[0034] Furthermore, in the present embodiment, the inner walls of the first liquid inlet and the second liquid inlet on the side close to the liquid outlet 20 are flush with the inner surface of the nozzle body 10 on the side having the liquid outlet 20. This structure allows the electrolyte to enter the nozzle body from both ends at a shorter distance from the liquid outlet, with sufficient pressure to form a uniform, stable and continuous liquid flow, thereby reducing the pressure reduction in the area near the liquid inlet caused by a flow pattern similar to "parabolic motion" occurring at the liquid inlet due to the long distance between the liquid inlet and the liquid outlet, and avoiding the discharge of parabolic liquid flow or electro-liquid beam flow, which leads to uneven pressure distribution of the discharged electrolyte.

[0035] Furthermore, in this embodiment, the flow areas of the first extension section 30 and the second extension section 40 are equal, and the ratio of the flow area of ​​the nozzle body 10 to the flow area of ​​the first extension section 30 is 2:1.

[0036] Furthermore, in this embodiment, the ratio of the length of the nozzle body 10 to the length of the liquid outlet 20 is 5:4.

[0037] Furthermore, in this embodiment, the ratio of the cross-sectional area of ​​the liquid outlet 20 to the sum of the cross-sectional areas of the first liquid inlet and the second liquid inlet is 1:3.

[0038] The following will fully describe the working process of a water wall nozzle based on electrojet mask processing in this embodiment in combination with the above contents.

[0039] The nozzle body 10 has a liquid flow cavity inside, and the two ends of the nozzle body 10 respectively have a first liquid inlet and a second liquid inlet, and the outer wall of the nozzle body 10 has a groove-shaped liquid outlet 20, and the liquid outlet 20 is opened along the direction from the first liquid inlet to the second liquid inlet; the two ends of the nozzle body 10 have a first extension section 30 and a second extension section 40 extending outward, and the first extension section 30 and the second extension section 40 are respectively formed with the first liquid inlet and the second liquid inlet; the first liquid inlet and the second liquid inlet are arranged opposite to each other, and the first liquid inlet and The second liquid inlet is arranged on a side close to the liquid outlet 20; the inner walls of the first extension section 30 and the second extension section 40 are provided with internal threads for connecting with the liquid supply pipe; the flow areas of the first extension section 30 and the second extension section 40 are equal, and the flow area of ​​the nozzle body 10 is in a ratio of 2:1 to the flow area of ​​the first extension section 30, the length of the nozzle body 10 is in a ratio of 5:4 to the length of the liquid outlet 20, and the cross-sectional area of ​​the liquid outlet 20 is in a ratio of 1:3 to the sum of the cross-sectional areas of the first liquid inlet and the second liquid inlet. After selecting a nozzle suitable for the anode workpiece to be processed, the electrojet processing is carried out.

[0040] During electrojet machining, the first extension section 30 and the second extension section 40 are both connected to the liquid supply pipe, and the electrolyte is flowed from the liquid supply pipe into the first liquid inlet and the second liquid inlet through high pressure, and then enters the nozzle body 10. The electrolyte flowing into the nozzle body 10 is then discharged through the liquid outlet 20. Since the liquid outlet 20 is a slot-shaped through hole, the discharged electrolyte forms a water wall-like liquid flow, and the water wall-like liquid flow is directly sprayed on the surface of the anode workpiece in the area to be processed. This water wall-like liquid flow is discharged continuously, evenly and stably to meet the requirements of electrojet machining.

[0041] In summary, the water wall nozzle based on electrojet mask processing uses a continuous, uniform and stable water wall-shaped liquid flow instead of a single nozzle beam, so that the electrojet processing can simultaneously scan a large processing area, satisfying the requirements that the electrolyte jet is directly facing the processing area and is evenly and stably distributed in the processing area; the liquid outlet 20 of the slot-shaped through hole can not only ensure the radial continuity of the liquid sprayed out by the nozzle body, but also ensure the uniform and stable distribution in the axial direction, and can meet the pressure requirements of jet electrolytic processing to form a water wall-shaped liquid flow with sufficient pressure; the first extension section 30 and the second extension section 40 are both threadedly connected to the liquid supply pipe, and this simple connection is used to ensure the sealing of the water wall nozzle to complete the clamping of the nozzle. ; A continuous water wall-like liquid flow is used instead of the beam, which can be swept into the processing area of ​​the anode workpiece surface in pieces, expanding the processing area, meeting the requirements that the electrolyte jet is facing the processing area and is evenly and stably distributed in the processing area, and getting rid of the influence of the traditional micro-electro-liquid beam cathode nozzle being difficult to manufacture and install on the jet electrolysis processing accuracy; at the same time, combined with the existing mature "pattern transfer + lithography process" technology, high-precision micro-texture masks can be manufactured. The water wall nozzle gets rid of the defects of the traditional cathode micro-nozzle being difficult to manufacture and install, and can form a uniform, stable and continuous water wall-like liquid flow, which improves the processing efficiency and makes the electrojet mask processing better applied to the field of large-scale manufacturing of surface micro-textures.

[0042] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0043] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present disclosure.

Claims

1. A water wall nozzle based on electrojet mask processing, characterized in that: include: A nozzle body (10), wherein the nozzle body (10) has a liquid flow cavity inside, and the two ends of the nozzle body (10) respectively have a first liquid inlet and a second liquid inlet, and the outer wall of the nozzle body (10) has a groove-shaped liquid outlet (20), and the liquid outlet (20) is opened along the direction from the first liquid inlet to the second liquid inlet.

2. The water wall nozzle based on electrojet mask processing according to claim 1, characterized in that: The two ends of the nozzle body (10) are provided with a first extension section (30) and a second extension section (40) extending outwards, and the first extension section (30) and the second extension section (40) are respectively formed with the first liquid inlet and the second liquid inlet.

3. The water wall nozzle based on electrojet mask processing according to claim 1, characterized in that: The first liquid inlet and the second liquid inlet are arranged opposite to each other, and both the first liquid inlet and the second liquid inlet are arranged on a side close to the liquid outlet (20).

4. The water wall nozzle based on electrojet mask processing according to claim 2, characterized in that: The outer edge lines of the end surface projections of the first extension section (30) and the second extension section (40) are both inscribed in the outer edge line of the end surface projection of the nozzle body (10), and the inscribed point is located on the side close to the liquid outlet (20).

5. The water wall nozzle based on electrojet mask processing according to claim 2, characterized in that: The inner walls of the first extension section (30) and the second extension section (40) both have internal threads for connecting to a liquid supply pipeline.

6. The water wall nozzle based on electrojet mask processing according to claim 1, characterized in that: The inner walls of the first liquid inlet and the second liquid inlet on the side close to the liquid outlet (20) are both flush with the inner surface of the spray head body (10) on the side having the liquid outlet (20).

7. The water wall nozzle based on electrojet mask processing according to claim 2, characterized in that: The flow areas of the first extension section (30) and the second extension section (40) are equal, and the ratio of the flow area of ​​the nozzle body (10) to the flow area of ​​the first extension section (30) is 2:

1.

8. The water wall nozzle based on electrojet mask processing according to claim 1, characterized in that: The ratio of the length of the nozzle body (10) to the length of the liquid outlet (20) is 5:

4.

9. The water wall nozzle based on electrojet mask processing according to claim 1, characterized in that: The ratio of the cross-sectional area of ​​the liquid outlet (20) to the sum of the cross-sectional areas of the first liquid inlet and the second liquid inlet is 1:3.

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