Pulse high-pressure component cleaning apparatus and control method thereof

Abstract

This invention discloses a pulsed high-voltage parts cleaning equipment and its control method, relating to the field of parts cleaning technology. It includes a cleaning machine body with an internal cleaning chamber, an electrode cleaning mechanism, a high-voltage pulse power supply, and a control system. Through a customized layout of a multi-level, multi-layer electrode array, the high-voltage pulse discharge energy can be precisely guided to every corner of the parts' internal cavity and external surface, especially deep holes, bends, and intersections that are difficult to reach using traditional methods, significantly reducing cleaning blind spots. By independently controlling the discharge parameters of each level / layer of electrodes, differentiated cleaning strategies can be implemented based on the degree of contamination and structural fragility of different areas within the cavity, effectively avoiding workpiece damage caused by energy overload while ensuring cleaning effectiveness. Combining a three-dimensional model of the parts with an electrode control strategy database enables rapid programming and automatic execution of cleaning plans, improving the equipment's adaptability to different parts and overall production efficiency.

Description

Technical Field

[0001] This invention relates to the field of parts cleaning technology, and in particular to a pulse high-voltage parts cleaning device and its control method. Background Technology

[0002] Thorough cleaning of the internal cavities of precision parts with deep holes, microchannels, and complex shapes (such as engine blocks, cylinder heads, engine fuel injectors, turbine blades, and molds) has always been a challenge in the manufacturing industry. Traditional cleaning methods, such as high-pressure water jetting, ultrasonic cleaning, and chemical cleaning, have limitations: high-pressure water jetting has blind spots in curved channels, and excessive pressure can easily damage thin-walled parts; ultrasonic cleaning is prone to forming standing waves in complex cavities, leading to uneven cleaning; and chemical cleaning presents environmental pollution and waste liquid disposal problems.

[0003] High-voltage pulsed discharge (HPD) is a phenomenon that instantaneously converts electrical energy into mechanical energy (shock wave), light energy, and heat energy through high-voltage pulsed discharge in a liquid medium, generating strong shock waves and cavitation effects. Theoretically, this effect is characterized by high energy density, non-directional action, and strong penetration, making it ideal for cleaning the interiors of complex structures. However, engineering the application of HPD to parts cleaning faces challenges: firstly, improper control of discharge energy and area can easily cause localized overload damage to the workpiece or incomplete cleaning; secondly, existing simple electrode structures are difficult to adapt to the diverse internal geometries of parts, resulting in uneven cleaning coverage and the existence of "dead zones."

[0004] Therefore, there is an urgent need for a high-efficiency, non-destructive cleaning device that can precisely control the energy release location and intensity of high-voltage pulse discharge to adapt to the internal cavity structure of different parts. Summary of the Invention

[0005] The purpose of this application is to provide a pulse high-pressure parts cleaning device and its control method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a pulse high-pressure parts cleaning device, including a cleaning machine body, a cleaning chamber provided inside the cleaning machine body, the cleaning chamber being used to contain the workpiece to be cleaned and the liquid medium; The pulse high-pressure parts cleaning equipment also includes: The electrode cleaning mechanism is located inside the cleaning chamber. The electrode cleaning mechanism includes multiple electrode cleaning units. Each electrode cleaning unit includes multiple electrode needles. The multiple electrode needles are configured as multiple discharge levels and multiple discharge layers. The electrode needles are used to discharge in the liquid medium to generate shock waves. A high-voltage pulse power supply is electrically connected to the electrode cleaning mechanism and provides discharge pulses to the electrode cleaning mechanism. The control system includes a control unit, which is communicatively connected to a high-voltage pulse power supply and is used to independently control the discharge parameters of different discharge levels and different discharge layers in the electrode cleaning unit.

[0007] As a further supplement to this solution, multiple electrode cleaning units are located on the side and bottom of the cleaning chamber, respectively.

[0008] As a further supplement to this scheme, multiple electrode needles are arranged in an array on the inner wall of the cleaning chamber.

[0009] As a further supplement to this solution, multiple electrode needles located on the side of the cleaning chamber are arranged in a vertical direction as multiple discharge levels, and multiple electrode needles located on the bottom surface of the cleaning chamber are arranged in a horizontal direction as multiple discharge layers.

[0010] As a further supplement to this scheme, the discharge parameters include pulse energy, pulse frequency, and pulse waveform.

[0011] As a further supplement to this solution, the electrode needles can be detachably installed on the inner wall of the cleaning chamber.

[0012] As a further supplement to this solution, the pulse high-voltage parts cleaning equipment also includes an electrostatic elimination device and a liquid circulation filtration system; The static eliminator includes a grounded clamp for holding the workpiece and a static eliminator filter element installed in the circulation pipeline; The liquid circulation filtration system includes a multi-stage filter and a temperature control device placed in the circulation pipeline.

[0013] As a further supplement to this solution, the electrode needles include flexible electrodes and rigid electrodes.

[0014] As a further supplement to this solution, the control system also includes a pressure sensor and a pressure regulation module; The control unit communicates with the pressure sensor and pressure regulation module to dynamically adjust the liquid pressure in the cleaning chamber.

[0015] A method for controlling the cleaning of pulsed high-voltage components, using the aforementioned pulsed high-voltage component cleaning equipment, includes the following steps: Step 1: Import the 3D model of the workpiece to be cleaned into the control unit. The matching algorithm built into the control system automatically identifies the depth and structure of each area based on the 3D model and generates an initial cleaning plan. Step 2: The workpiece to be cleaned is clamped in a grounding fixture and immersed in a liquid medium. The control unit, according to the cleaning plan, instructs the high-voltage pulse power supply to trigger the discharge of the electrode needles at different levels in turn according to the set parameters. Step 3: The pressure sensor monitors the liquid pressure in the cleaning chamber in real time. The control unit dynamically adjusts the liquid pressure through a fuzzy PID algorithm in conjunction with the pressure regulation module. The liquid circulation filtration system works continuously to keep the medium clean and at a constant temperature. Step 4: Stop the cleaning operation, use the anti-static filter to destaticate the workpiece, and finally remove the cleaned workpiece from the grounding clamp.

[0016] In summary, the technical effects and advantages of this invention are as follows: 1. In this invention, through the customized layout of multi-level and multi-layer electrode arrays, the energy of high-voltage pulse discharge effect can be precisely guided to every corner of the inner cavity and outer surface of the part, especially the deep holes, bends and cross holes that are difficult to reach by traditional methods, which significantly reduces cleaning blind spots.

[0017] 2. In this invention, by independently controlling the discharge parameters of each level / layer electrode, differentiated cleaning strategies can be implemented according to the degree of contamination and structural fragility of different areas of the inner cavity. While ensuring the cleaning effect, the workpiece damage caused by energy overload is effectively avoided.

[0018] 3. In this invention, by combining the three-dimensional model of the parts with the electrode control strategy database, it is possible to quickly program and automatically execute the cleaning scheme, thereby improving the equipment's adaptability to different parts and overall production efficiency.

[0019] 4. In this invention, water is mainly used as the medium, which avoids the environmental pollution problems caused by chemical cleaning; energy is applied directly to the pollutants, resulting in high cleaning efficiency and relatively low energy consumption. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a top view of the structure in this embodiment; Figure 2 This is a side view of the electrode cleaning mechanism in this embodiment. Figure 3 This is a schematic diagram of the electrode cleaning unit in this embodiment.

[0022] In the diagram: 1. Electrode needle; 2. Grounding clamp; 3. Antistatic filter element; 4. Multi-stage filter; 5. Pressure sensor; 6. Pressure regulation module. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] refer to Figure 1-3 The pulse high-pressure parts cleaning equipment shown includes a cleaning machine body with a cleaning chamber inside. The cleaning chamber is used to contain the workpiece to be cleaned and the liquid medium. The liquid medium is mainly water, which avoids the environmental pollution problems caused by chemical cleaning. Moreover, the energy is directly applied to the pollutants, resulting in high cleaning efficiency and relatively low energy consumption.

[0025] The pulse high-voltage parts cleaning equipment also includes an electrode cleaning mechanism, a high-voltage pulse power supply, a control system, an electrostatic elimination device, and a liquid circulation filtration system.

[0026] The electrode cleaning mechanism is located inside the cleaning chamber and is used to discharge in the liquid medium to generate a shock wave. Specifically, the electrode cleaning mechanism includes multiple electrode cleaning units, which are located on the side and bottom of the cleaning chamber, respectively. More specifically, each electrode cleaning unit includes multiple electrode needles 1, which are arranged in an array on the inner wall of the cleaning chamber.

[0027] Specifically, multiple electrode needles 1 located on the side of the cleaning chamber are arranged vertically as multiple discharge levels, and multiple electrode needles 1 located on the bottom surface of the cleaning chamber are arranged horizontally as multiple discharge layers. This "multi-level" and "multi-layer" structural design allows the discharge points to match the three-dimensional geometric features of the parts in both depth and breadth. The high-voltage pulse power supply is electrically connected to the electrode cleaning mechanism and provides discharge pulses to the electrode cleaning mechanism. The control system includes a control unit, which is communicatively connected to the high-voltage pulse power supply and is used to independently control the discharge parameters (including but not limited to pulse energy, pulse frequency, and pulse waveform) of different discharge levels and different discharge layers in the electrode cleaning unit. For example, for deep-hole parts, the deep electrode can be controlled to use high-energy, appropriate-frequency pulses to remove stubborn deposits, while the shallow electrode can be controlled to use low-energy, appropriate-frequency pulses to clean oil stains, thereby achieving "deep layering stripping" and "radial precise coverage" of energy.

[0028] The control unit can integrate an expert system or a matching database. By importing the three-dimensional model of the workpiece to be cleaned, the system can automatically identify the structural features of the workpiece and call the pre-stored or generated algorithm to automatically match and generate the optimal electrode control strategy for the workpiece, thus achieving rapid model changeover.

[0029] The electrode needles 1 are detachably mounted on the inner wall of the cleaning chamber, allowing them to be arranged according to the actual shape of the workpiece to be cleaned. Correspondingly, the control unit can automatically generate discharge parameter control strategies for different discharge levels and different discharge layers in the electrode cleaning unit based on the shape and structure model of the workpiece to be cleaned; for example, the electrode array can adopt a honeycomb arrangement to achieve denser and more uniform discharge point coverage within a given space.

[0030] Specifically, electrode needle 1 includes flexible electrodes and rigid electrodes. The flexible electrode can better adapt to curved, non-linear flow channels. By adjusting its position and angle to fit closely to the complex curved surface of the workpiece's inner wall, it can target and clean areas that are difficult for conventional rigid electrodes to reach, such as the inner walls of curved flow channels and irregularly shaped grooves, avoiding cleaning blind spots. The rigid electrode, on the other hand, is mostly used for fixed-position, regularly shaped planes or straight channels. Its stable structure and more precise control of discharge parameters enable high-intensity, continuous cleaning of stubborn scale-laden areas.

[0031] In practical applications, operators can combine flexible and rigid electrodes in different ways based on the structural characteristics of the workpiece to be cleaned. Different types of electrodes can be arranged for different areas of the workpiece, taking into account both cleaning coverage and cleaning efficiency. For example, for engine block workpieces with multiple curved oil passages, rigid electrodes can be placed in the straight inlet section to ensure effective removal of inlet scale, while flexible electrodes can be placed in the internal curved oil passage sections to follow the flow path and adhere closely to the inner wall, achieving a thorough cleaning of the entire flow path. Simultaneously, the discharge ends of electrode needles 1 are mostly made of tungsten-copper alloy, which is resistant to high-pressure corrosion and has excellent conductivity. Even after prolonged operation in a cleaning chamber environment containing cleaning fluid and impurities, they maintain stable discharge performance and are less prone to oxidation or rapid wear, effectively extending the electrode replacement cycle and reducing equipment maintenance costs.

[0032] The electrostatic elimination device includes a grounding clamp 2 for holding the workpiece and an antistatic filter element 3 installed in the circulation pipeline. The antistatic filter element 3 can eliminate any residual static electricity on the surface of the workpiece and prevent dust adsorption. The liquid circulation filtration system includes a multi-stage filter 4 and a temperature control device placed in the circulation pipeline to ensure the cleanliness and performance stability of the cleaning liquid medium. The multi-stage filter 4 is arranged in the pipeline in order of increasing filtration precision. First, the coarse filter element filters out large particles of scale and impurities that have been peeled off from the surface of the workpiece, preventing large particles of impurities from clogging the subsequent high-precision filtration unit. Then, the medium and fine filters gradually remove the tiny dirt debris and soluble impurities suspended in the cleaning liquid, and finally output a clean medium that meets the requirements of discharge cleaning. This ensures that the cleaning liquid sprayed in each cycle can maintain a stable impurity filtration effect and will not reduce the final cleaning cleanliness as the impurity content in the cleaning liquid increases.

[0033] The temperature control device includes a heating module and a temperature sensor, which can stably control the cleaning fluid within a set temperature range according to the needs of the cleaning operation: In winter when the ambient temperature is low, the low temperature will increase the viscosity of the cleaning fluid and reduce the activity of the added surfactants. At this time, the heating module can raise the temperature of the cleaning fluid to the most suitable reaction temperature, improve the softening and dissolving effect of dirt, and enhance the overall cleaning efficiency; If the cleaning fluid is continuously heated by discharge during long-term continuous operation, the temperature sensor will activate the heat dissipation module to reduce the liquid temperature after detecting that the temperature exceeds the threshold, so as to avoid the high temperature causing the cleaning fluid components to deteriorate or accelerate the oxidation and wear of the electrodes, and always ensure the performance stability of the cleaning process.

[0034] Furthermore, the equipment's discharge control unit is equipped with an intelligent parameter adjustment module. Operators can input the material, scale type, and degree of contamination of the workpiece to be cleaned, and the module will automatically match the most suitable pulse voltage, discharge frequency, and cleaning duration. This eliminates the need for repeated manual parameter adjustments, reducing the experience requirements for operators and preventing incomplete cleaning or damage to the workpiece substrate caused by improper parameter settings. For batch processing of the same model of workpieces, saved parameters can be directly recalled with one click, ensuring consistent cleaning results for each workpiece, making it suitable for continuous processing operations on industrial production lines. After cleaning, the equipment will also start an automatic air-blowing drying program, using high-pressure airflow to thoroughly blow out residual cleaning fluid from workpiece crevices and blind holes, preventing residual liquid from forming new water stains on the workpiece surface. After removal, the workpiece can directly proceed to the next processing step without additional manual wiping or drying, further enhancing the automation of the entire parts cleaning process.

[0035] In addition, the control system also includes a pressure sensor 5 and a pressure regulation module 6. The control unit is communicatively connected to the pressure sensor 5 and the pressure regulation module 6 to dynamically regulate the liquid pressure in the cleaning chamber. The pressure sensor 5 collects liquid pressure data at different locations in the cleaning chamber in real time and transmits the data synchronously to the control unit. The control unit compares and analyzes the collected data according to the preset pressure range. When insufficient local pressure is detected, it immediately sends a command to the pressure regulation module 6 to increase the liquid pressure in the corresponding area by adjusting the opening of the inlet valve and the power of the booster pump, ensuring that the impact force of the high-pressure water jet can cover all the workpiece surfaces to be cleaned. When the pressure exceeds the preset safety threshold, the pressure regulation module will promptly reduce the output power of the booster pump and open the pressure relief valve to discharge the excess pressure. This can not only avoid impact damage to the workpiece caused by excessive pressure, but also extend the service life of the equipment seals and pipelines, and prevent aging and leakage problems caused by long-term overpressure operation. For parts with complex structures and layered internal cavities, multiple pressure gradient programs can be set in advance. The equipment will automatically adjust the pressure at different cleaning stages according to the program instructions, increasing the impact force for stubborn scale areas and reducing the pressure for thin-walled and fragile areas, so as to protect the structural precision of the workpiece to the greatest extent while ensuring the cleaning effect.

[0036] A method for controlling the cleaning of pulsed high-voltage components, using the aforementioned pulsed high-voltage component cleaning equipment, includes the following steps: Step 1: Import the 3D model of the workpiece to be cleaned into the control unit. The matching algorithm built into the control system automatically identifies the depth and structure of each area based on the 3D model and generates an initial cleaning plan. Step 2: The workpiece to be cleaned is clamped in the grounding clamp 2 and immersed in the liquid medium. According to the cleaning plan, the control unit instructs the high-voltage pulse power supply to trigger the discharge of the electrode needles 1 of different levels in turn according to the set parameters. The generated high-voltage pulse discharge effect induces strong shock waves, turbulence and cavitation effects in various parts of the workpiece cavity, which work together to remove molding sand, burrs and oil stains. Step 3: The pressure sensor monitors the liquid pressure in the cleaning chamber in real time. The control unit uses a fuzzy PID algorithm in conjunction with the pressure regulation module 6 (e.g., a pressure regulating valve) to dynamically adjust the liquid pressure so that the pressure is stable within the range of 1.0MPa±0.05MPa. The liquid circulation filtration system continues to work to keep the medium clean and at a constant temperature (e.g., 30℃). Step 4: Stop the cleaning operation, use the antistatic filter element 3 to eliminate any residual static electricity on the surface of the workpiece, and finally remove the cleaned workpiece from the grounding clamp 2. Step 5: Conduct multi-dimensional cleanliness tests on the cleaned workpiece: Take pictures and observe the dead corners of the workpiece cavity one by one, count the percentage of residual molding sand, and finally measure the residual molding sand removal rate; then use the gravimetric extraction method to measure the amount of oil residue on the inner cavity surface.

[0037] Example 1:

[0038] For example, the cleaning equipment and control method described above are used to clean the cylinder head water jacket of a certain model of engine: the arrayed electrode needles 1 are divided into three discharge levels (L1 shallow layer, L2 middle layer, L3 deep layer) along the axial direction of the water jacket. Each level contains two concentric rings of discharge layers. All electrode needles 1 are arranged in a honeycomb hexagonal pattern to ensure coverage without dead angles. For a section of curved intake passage, flexible electrodes with bendable guides are used, allowing the electrodes to penetrate deep into the center of the inner cavity of the intake passage along its curvature, avoiding problems such as electrodes not being able to reach the correct position or incomplete coverage of local areas due to the curvature of the intake passage. Before formal cleaning, the cylinder head is pre-cleaned to remove large pieces of loose molding sand and dust adhering to the surface. Then, the pre-cleaned cylinder head is clamped and fixed using a grounding clamp and immersed in 30°C deionized water cleaning medium to ensure that the inner cavity of the water jacket is completely filled with the medium and there are no residual air bubbles.

[0039] Before cleaning, the cylinder head 3D model is imported into the control unit. The system's built-in matching algorithm automatically identifies the depth and structure of each area based on the model. The control unit sets the parameters according to the preset cleaning plan: the L3 deep area (heavily contaminated) is set to a pulse energy of 80J and a frequency of 20Hz; the L1 and L2 areas are set to a pulse energy of 30J and a frequency of 80Hz. Operators can make fine adjustments on the human-machine interface. The high-voltage pulse power supply triggers the discharge of the three levels in turn in the order of L1 to L3. Within each level, the electrode needles are triggered to discharge in the order from the outer ring to the inner ring. During the discharge process, instantaneous high-voltage shock waves are continuously generated in various parts of the water jacket and the air inlet cavity. The highest instantaneous pressure can reach hundreds of MPa. The impact force directly acts on the molding sand and burrs attached to the inner cavity wall. At the same time, the cavitation effect caused by the pulse discharge will continuously generate tiny bubbles in the medium. The secondary gas shock wave when the bubbles burst further impacts the stubborn dirt in the gaps. The turbulence will cause the molding sand particles, burr debris and oil stains that have been washed away to continuously detach from the inner cavity and mix into the cleaning medium.

[0040] Throughout the cleaning process, the pressure sensor transmits the liquid pressure signal in the cleaning chamber to the control unit in real time. The control unit calculates the pressure deviation using a fuzzy PID algorithm and immediately instructs the pressure regulation module to adjust the inlet water flow, stabilizing the chamber pressure within the range of 1.0MPa ± 0.05MPa. Simultaneously, the liquid circulation filtration system continuously extracts the medium mixed with dirt, filters out debris and oil through the filter element, and then returns it to the cleaning chamber. The medium temperature is maintained at a stable 30℃ to prevent temperature fluctuations from affecting the discharge effect and cavitation intensity. After cleaning, electrode discharge is stopped, and the cylinder head is immersed in the circulating medium for 1 minute to allow debris to fully dislodge and flow out. Then, the antistatic filter element 3 is activated to eliminate any residual static electricity on the workpiece surface, preventing dust adsorption. Finally, the grounded quick-release clamp is opened, and the cleaned cylinder head is smoothly removed.

[0041] Tests showed that the cleaning blind zone inside the water jacket and oil channel was less than 0.5%, the cleaning time was shortened by about 60% compared with traditional ultrasonic cleaning, and the workpiece surface was found to be undamaged.

[0042] Following this, the cleaned cylinder head underwent multi-dimensional cleanliness testing: First, an endoscope was used to photograph and observe the blind spots in the curved internal cavities such as the water jacket and intake manifold, and the percentage of residual molding sand was counted to determine the residual molding sand removal rate. Then, the amount of residual oil on the internal cavity surface was measured using gravimetric extraction. To compare the effectiveness of traditional cleaning methods, identical cylinder heads from the same batch were selected, and high-pressure water jet cleaning (commonly used in the industry) and traditional ultrasonic cleaning were used as control experiments. Finally, a roughness tester was used to inspect the mating surfaces and sealing surfaces of the cylinder head, and the roughness data before cleaning was compared.

[0043] It should be noted that the specific models and specifications of the electrical equipment involved in this solution need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here. The power supply and principles of the electrical equipment involved are clear to those skilled in the art, and will not be described in detail here.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pulse high-pressure parts cleaning apparatus comprising a cleaning machine body, characterized by, The cleaning machine body is provided with a cleaning chamber, which is used to contain the workpiece to be cleaned and the liquid medium. Also includes: An electrode cleaning mechanism is disposed inside the cleaning chamber. The electrode cleaning mechanism includes multiple electrode cleaning units, each of which includes multiple electrode needles (1). The multiple electrode needles (1) are configured as multiple discharge levels and multiple discharge layers. The electrode needles (1) are used to discharge in a liquid medium to generate shock waves. A high-voltage pulse power supply is electrically connected to the electrode cleaning mechanism and provides discharge pulses to the electrode cleaning mechanism. The control system includes a control unit, which is communicatively connected to the high-voltage pulse power supply and is used to independently control the discharge parameters of different discharge levels and different discharge layers in the electrode cleaning unit.

2. The pulse high-voltage parts cleaning equipment according to claim 1, characterized in that: Multiple electrode cleaning units are located on the side and bottom of the cleaning chamber, respectively.

3. The pulse high-pressure parts cleaning equipment according to claim 2, characterized in that: Multiple electrode needles (1) are arranged in an array on the inner wall of the cleaning chamber.

4. The pulse high-pressure parts cleaning equipment according to claim 3, characterized in that: The electrode needles (1) located on the side of the cleaning chamber are arranged in a vertical direction as a plurality of discharge levels, and the electrode needles (1) located on the bottom surface of the cleaning chamber are arranged in a horizontal direction as a plurality of discharge layers.

5. The pulse high-voltage parts cleaning equipment according to claim 1, characterized in that: The discharge parameters include pulse energy, pulse frequency, and pulse waveform.

6. The pulse high-pressure parts cleaning equipment according to claim 3, characterized in that: The electrode needle (1) is detachably installed on the inner wall of the cleaning chamber.

7. The pulse high-voltage parts cleaning equipment according to claim 1, characterized in that: The electrode needle includes a flexible electrode and a rigid electrode.

8. The pulse high-voltage parts cleaning equipment according to claim 1, characterized in that: It also includes static electricity elimination devices and liquid circulation filtration systems; The static elimination device includes a grounding clamp (2) for holding the workpiece and a static elimination filter element (3) disposed in the circulation pipeline. The liquid circulation filtration system includes a multi-stage filter (4) placed in the circulation pipeline and a temperature control device.

9. The pulse high-voltage parts cleaning equipment according to claim 1, characterized in that: The control system also includes a pressure sensor (5) and a pressure regulation module (6). The control unit is communicatively connected to the pressure sensor (5) and the pressure regulating module (6) for dynamically regulating the liquid pressure in the cleaning chamber.

10. A pulse high-voltage component cleaning control method, employing a pulse high-voltage component cleaning device as described in any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Import the 3D model of the workpiece to be cleaned into the control unit. The matching algorithm built into the control system automatically identifies the depth and structure of each area based on the 3D model and generates an initial cleaning plan. Step 2: The cleaned workpiece is clamped by the grounding clamp (2) and immersed in the liquid medium. The control unit, according to the cleaning plan, instructs the high-voltage pulse power supply to trigger the discharge of the electrode needles (1) of different levels in turn according to the set parameters. Step 3: Use pressure sensors to monitor the liquid pressure in the cleaning chamber in real time. The control unit uses a fuzzy PID algorithm in conjunction with the pressure regulation module (6) to dynamically adjust the liquid pressure. The liquid circulation filtration system works continuously to keep the medium clean and at a constant temperature. Step 4: Stop the cleaning operation, use the antistatic filter (3) to perform antistatic treatment on the workpiece, and finally remove the cleaned workpiece from the grounding clamp (2).

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