A nozzle assembly for plasma polishing

Abstract

The utility model discloses a nozzle assembly is used in plasma polishing, including tool base, spray head frame and spray head subassembly, tool base both sides each installation is with one spray head frame, is equipped with a plurality of mounting holes on the spray head frame, spray head subassembly installs on the mounting hole of spray head frame, and each spray head subassembly includes two spray heads, and two spray heads are connected respectively the anode and cathode of plasma power supply, the utility model discloses two spray heads of same group are connected respectively the anode and cathode of plasma power supply, utilize the anode liquid and cathode liquid that it sprays and meet on the workpiece surface and form ionization field, produce high energy plasma through the ionization field of pulsed electric field excitation, carry out decontamination polishing treatment to workpiece surface, need not workpiece to have conductivity, and the scope of application is wide.

Description

Technical Field

[0001] This utility model relates to the field of plasma polishing technology, and in particular to a nozzle assembly for plasma polishing. Background Technology

[0002] Currently, most plasma polishing processes employ immersion processing, where the workpiece is completely immersed in a plasma reaction tank for electrolytic treatment. While this method is suitable for small standard parts, it is limited by the volume of the reaction tank, making it unsuitable for large structural parts, and it lacks compatibility with non-conductive substrates.

[0003] There are commercially available processes that use dynamic spraying to treat large stainless steel components. The workpiece is used as the working electrode, and the sprayed electrolyte serves as another tooling electrode, creating plasma discharge through the electrolyte spray. However, this method is only suitable for workpieces with conductive properties and cannot process non-conductive materials such as ceramics, glass, or composite materials, thus limiting its applicability. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a nozzle assembly for plasma polishing, which can simultaneously spray anolyte and catholyte onto a workpiece to polish its surface.

[0005] Therefore, the technical solution of this utility model is: a nozzle assembly for plasma polishing, including a tooling base, a nozzle holder, and a nozzle assembly; a nozzle holder is installed on each side of the tooling base, and the nozzle holder is provided with a plurality of mounting holes; the nozzle assembly is installed on the mounting holes of the nozzle holder, and each nozzle assembly includes two nozzles, and the two nozzles are respectively connected to the anode and cathode of the plasma power supply.

[0006] Based on the above scheme and as a preferred option, two nozzles in the same group spray anolyte and catholyte onto the workpiece respectively, with the anolyte and catholyte working together.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the nozzle includes a water distributor and a spraying part. The water distributor has a mounting part on its rear side, and the mounting part has a long slot hole, which is fixed to the mounting hole of the nozzle frame by fasteners; the spraying part is fixed to the front end of the water distributor.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the water distributor is provided with a water inlet at the top and a flat spray nozzle at the front end of the spray section; the water inlet and the spray nozzle are connected through an internal pipeline.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the tooling base includes two side plates, each side plate has an arc-shaped opening, and an arc-shaped positioning sleeve is fixed to the side of each arc-shaped opening. The positioning sleeve has an L-shaped cross section.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the nozzle frame is provided with a mounting surface, and the mounting surface is provided with a plurality of equally spaced mounting holes.

[0011] In use, the electrolyte is connected to the distributor of two nozzles in the same group, and the two nozzles are respectively connected to the anode and cathode of the plasma power supply. The anolyte and cathode liquids sprayed from the nozzles converge on the workpiece surface to form an ionization field. High-energy plasma is generated by exciting the ionization field through a pulsed electric field, which performs decontamination and polishing treatment on the workpiece surface. During the polishing process, the nozzles can move along the workpiece axis to perform large-area spray polishing on the workpiece.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The two nozzles in the same group are connected to the anode and cathode of the plasma power supply, respectively. The anolyte and cathode liquids sprayed from them converge on the workpiece surface to form an ionization field. The ionization field is excited by the pulsed electric field to generate high-energy plasma, which is used to clean and polish the workpiece surface. The workpiece does not need to be conductive, and it has a wide range of applications.

[0013] Multiple pairs of equidistant mounting holes are provided on the mounting surface of the nozzle holder, allowing the nozzle position to be adjusted according to usage requirements, making it more suitable for workpiece specifications and improving the versatility of the nozzle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified view of a portion of the image; Figure 3 This is a cross-sectional view of the nozzle structure of this utility model; Figure 4 This is a schematic diagram illustrating the use of this utility model.

[0015] The components in the diagram are marked as follows: tooling base 1, side plate 11, nozzle bracket 2, mounting surface 21, mounting hole 22, positioning sleeve 3, nozzle 4, water distributor 41, spray section 42, mounting section 43, long slot hole 44, water inlet 45, spray nozzle 46, internal pipeline 47, and workpiece 5. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. They should not be construed as limiting the specific protection scope of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0018] See the attached drawings. The plasma polishing nozzle assembly described in this embodiment includes a fixture base 1, a nozzle holder 2, and a nozzle assembly. The fixture base 1 includes two side plates 11, each with an arc-shaped opening. An arc-shaped positioning sleeve 3 is fixed to the side of each arc-shaped opening. The positioning sleeve 3 has an L-shaped cross-section. The tubular workpiece 5 can be placed inside the positioning sleeve 3 and can be moved and rotated as needed.

[0019] A nozzle holder 2 is mounted on each of the two side plates 11 of the tooling base 1. The nozzle holder 2 has a mounting surface 21 with a plurality of equally spaced mounting holes 22. The nozzle assembly is mounted on the mounting surface 21 of the nozzle holder 2. Each nozzle assembly includes two nozzles 4, and the two nozzles 4 are respectively connected to the anode and cathode of the plasma power supply. The two nozzles 4 in the same group spray anolyte and catholyte onto the workpiece 5, respectively, and the anolyte and catholyte work together.

[0020] The nozzle 4 includes a water distributor 41 and a spray section 42. The water distributor 41 has a mounting section 43 on its rear side, and the mounting section 43 has an elongated slot 44, which is fixed to the mounting hole 22 of the nozzle holder 2 by fasteners. The top of the water distributor 41 has a water inlet 45, and the spray section 42 is fixed to the front end of the water distributor 41. The front end of the spray section 42 has a flat spray nozzle 46, and the water inlet 45 and the spray nozzle 46 are connected through an internal pipe 47.

[0021] In use, the electrolyte is connected to the water distributor 41 of the two nozzles 4 in the same group, and the two nozzles 4 are respectively connected to the anode and cathode of the plasma power supply. The anolyte and cathode liquids sprayed from the nozzles converge on the surface of the workpiece 5 to form an ionization field. High-energy plasma is generated by exciting the ionization field through a pulsed electric field, which performs decontamination and polishing treatment on the surface of the workpiece 5. During the polishing process, the nozzles 4 can move along the axial direction of the workpiece 5 to perform large-area spray polishing on the workpiece 5. The workpiece 5 can rotate during polishing. The rotation of the workpiece and the movement of the nozzles can be achieved by existing mechanisms such as existing support wheels and linear movement modules, so they will not be described in detail here.

[0022] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A nozzle assembly for plasma polishing, characterized in that: It includes a tooling base, a nozzle holder, and a nozzle assembly; a nozzle holder is installed on each side of the tooling base, and the nozzle holder is provided with several mounting holes; the nozzle assembly is installed on the mounting holes of the nozzle holder, and each nozzle assembly includes two nozzles, and the two nozzles are respectively connected to the anode and cathode of the plasma power supply.

2. The nozzle assembly for plasma polishing as described in claim 1, characterized in that: The two nozzles in the same group spray anolyte and catholyte onto the workpiece respectively, and the anolyte and catholyte work together.

3. The nozzle assembly for plasma polishing as described in claim 1, characterized in that: The nozzle includes a water distributor and a spray section. The water distributor has a mounting section on its rear side, and the mounting section has an elongated slot hole, which is fixed to the mounting hole of the nozzle frame by fasteners. The spray section is fixed to the front end of the water distributor.

4. The nozzle assembly for plasma polishing as described in claim 3, characterized in that: The water distributor has an inlet at the top and a flat spray nozzle at the front end of the spray section; the inlet and the spray nozzle are connected by an internal pipeline.

5. The nozzle assembly for plasma polishing as described in claim 1, characterized in that: The tooling base includes two side plates, each with an arc-shaped opening. An arc-shaped positioning sleeve is fixed to the side of each arc-shaped opening, and the positioning sleeve has an L-shaped cross-section.

6. The nozzle assembly for plasma polishing as described in claim 1, characterized in that: The nozzle holder has a mounting surface with several equally spaced mounting holes.

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