Plasma welding auxiliary device for water pump shell production

Abstract

The invention discloses a plasma welding auxiliary device for water pump shell production, and relates to the technical field of welding auxiliary equipment. The air pressure difference data, the weight data and the tension data are simultaneously collected through the analysis module, and the actual mass of the filtered matter on the surface of the filter screen is accurately calculated in combination with the weight change of the residue collection box after shutdown, so that compared with a traditional judgment mode which only depends on the air pressure difference, the interference factor of'abnormal air pressure difference caused by airflow fluctuation 'can be eliminated, and the judgment accuracy is improved; the air pressure difference change caused by unit filtering capacity is calculated, the threshold value is not a fixed value and is dynamically adjusted according to historical filtering data, and misjudgment caused by working condition change is avoided; and the analysis module incorporates four parameters of light radiation intensity, gas flow rate, temperature and humidity into a sterilization rate formula, when abnormity occurs in the welding process, the abnormity of the sterilization rate can be found in time, the required light radiation intensity is calculated and adjusted, and the sterilization rate is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of welding auxiliary equipment technology, and in particular to a plasma welding auxiliary device for the production of water pump housings. Background Technology

[0002] In the manufacturing of water pump casings, welding is a crucial process. Plasma welding, with its advantages of concentrated energy, fast welding speed, and high weld quality, has been widely used in the field of water pump casing welding. However, there are still some problems that need to be solved in the actual plasma welding process of water pump casings: On the one hand, some existing welding auxiliary devices are not effective at fixing the pump casing. For example, some simple clamps can only achieve unidirectional fixation. During welding, the pump casing is affected by the impact force and thermal stress of the plasma arc, which can easily cause displacement or shaking. Just like traditional simple clamp-type fixing devices, during the welding process, the pump casing is locally heated and expanded due to the welding heat input. The fixing force of the clamp is difficult to maintain the stability of the casing, resulting in weld deviation, which seriously affects the welding quality and reduces the product qualification rate. On the other hand, the harmful gases and metal shavings generated during the welding process are not handled properly. Plasma welding produces a large amount of ultraviolet rays, ozone, and metal spatter. The ventilation system used in some welding workshops simply exhausts the gas outdoors without effectively purifying the harmful gases. This not only pollutes the environment but also endangers the health of workshop workers. As for metal shavings, if they are not cleaned and collected in time, they will accumulate on the workbench, which will not only affect the cleanliness of the working environment but may also mix into other equipment, damage the equipment, and increase equipment maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plasma welding auxiliary device for the production of water pump housings.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a plasma welding auxiliary device for the production of water pump housings, comprising a base, a mounting frame mounted on the top surface of the base, a support base, a linear motor and a control console mounted on the top surface of the base, the support base being located at the front end of the linear motor, the support base being located directly below the mounting frame, and a support mechanism being mounted on the mounting frame, the control console being located on one side of the linear motor, a purification box being mounted on the top surface of the mounting frame, and a purification mechanism being installed inside the purification box; The central control console is equipped with intelligent control components, which include an analysis module and a control module. The analysis module receives and analyzes the acquired air pressure difference data, weight data, and tensile force data. It determines the change in air pressure difference caused by the unit filtration volume at the corresponding location. When the air pressure difference at the corresponding location exceeds the change in air pressure caused by the unit filtration volume, a cleaning signal is generated and transmitted to the control module. The module also receives and analyzes the acquired gas flow rate, gas temperature, and gas humidity, elucidates their impact on the sterilization rate, calculates the required light radiation intensity based on the difference between the set sterilization rate and the actual sterilization rate, and adjusts the light radiation intensity accordingly.

[0005] Preferably, the analysis module performs the following steps for analyzing the pressure difference: M1: Based on the weight change inside the slag collection box after shutdown and the weight data at the locations of the metal filter screen and the cloth bag screen, the mass data of the filtered material on the metal filter screen and the cloth bag screen can be determined. , ; regarding quality data and The air pressure difference data within the corresponding time period are sorted, and the change in air pressure difference between adjacent collection times is calculated. ,like Changes in air pressure difference at different times satisfy: If the change in air pressure difference is stable, then it can be determined that the change is stable. for The mean of all pressure difference changes within a given time period; then the filtration rate per unit time at the locations of the metal filter and the cloth filter is... , The change in air pressure caused by a unit filtration volume is , ; M2: Pressure difference at the location of the metal filter When the filtration effect of the metal filter reaches a threshold, cleaning is required, a cleaning signal is generated, and the cleaning signal is transmitted to the control module; the air pressure difference at the location of the filter bag... When the filtration effect of the filter bag reaches the threshold, it is determined that cleaning is required, a cleaning signal is generated, and the cleaning signal is transmitted to the control module.

[0006] Preferably, the analysis module performs the following steps to analyze the sterilization rate: N1: UV radiation level for UV sterilization , The intensity of light radiation. Residence time is the time the gas spends inside the purification chamber. The sterilization rate is ,in , The effective volume of the cleanroom The gas flow rate is... This represents the cross-sectional area of ​​the gas flow channel. Sensitivity coefficient; N2: The effective dose actually absorbed by microorganisms , Relative humidity of the gas; temperature-corrected sensitivity coefficient , The baseline sensitivity coefficient is set at a suitable temperature of 25℃. The gas temperature; N3: Will and Substituting the values, we get the sterilization rate. Within the set gas flow rate and temperature / humidity range, the intensity of the ultraviolet germicidal lamp's light radiation can be increased. To ensure a high sterilization rate.

[0007] Preferably, a movable base is slidably connected to the linear motor, a six-axis robotic arm is mounted on the top surface of the movable base, and a plasma welding head is mounted on the output end of the six-axis robotic arm.

[0008] Preferably, the purification mechanism includes air inlets and exhaust outlets on both sides of the purification chamber, a metal filter screen is installed inside the purification chamber, a cloth bag is installed on one side of the metal filter screen, an activated carbon adsorption layer is installed on one side of the cloth bag, and multiple ultraviolet germicidal lamps are installed on one side of the activated carbon adsorption layer.

[0009] Preferably, the air inlet of the purification box is connected to an air pump via an air pipe, and the other end of the air pump is connected to a suction plate with its output end pointing downwards via an air pipe. The suction plate is located directly above the support mechanism.

[0010] Preferably, the support mechanism includes a first motor installed inside both sides of the support base. The output end of the first motor is connected to a first lead screw via a coupling. A slider is threaded onto the first lead screw. The slider is inserted into the upper ends of both sides of the support base, and a first rotating shaft is rotatably connected between the two sliders. A cylindrical first adjusting base is fixed to the outside of the first rotating shaft. A second motor is installed inside the first adjusting base. A turntable is installed at the output end of the second motor. The turntable is rotatably connected to the upper end of the first adjusting base, and two mounting ears are fixed to the top surface of the turntable. A second rotating shaft is rotatably connected between the two mounting ears. A second adjusting base is fixed to the outside of the second rotating shaft. A mounting plate is fixed to the upper end of the second adjusting base. Multiple sets of positioning components are equidistantly installed around the center on the top surface of the mounting plate, and adjusting components are installed longitudinally and laterally on one side of the first rotating shaft and the second rotating shaft, respectively.

[0011] Preferably, the adjustment assembly includes a third motor respectively mounted on the upper end of one side of the support base and the second side of the adjustment base. The output end of the third motor is connected to a worm gear via a coupling. A worm wheel is engaged with one side of the worm gear. A second lead screw is fixedly connected to the center of the worm wheel. A rack is threaded onto the two second lead screws. The rack is slidably connected to the upper end of one side of the support base and the second side of the adjustment base, respectively. A gear is engaged with the upper end of the rack. The gear is connected to one side of the first rotating shaft and the second rotating shaft, respectively.

[0012] Preferably, the positioning component includes a fourth motor installed on the periphery of the mounting plate, the output end of the fourth motor being connected to a third lead screw via a coupling, the third lead screw being rotatably installed inside the mounting plate, and a movable seat being threadedly connected to the third lead screw, the movable seat being slidably installed on the top surface of the mounting plate, and a clamping component being installed on the movable seat.

[0013] Preferably, the clamping component includes a positioning plate fixed to the top surface of the movable seat and a movable plate slidably connected to the top surface of the movable seat. An electric push rod is connected between the movable plate and the positioning plate, and clamping plates are hinged to both sides of the positioning plate. Anti-slip textures are formed on the clamping plates. A pressure sensor is installed inside the positioning plate, and a hinge rod is provided between the clamping plate and the movable plate. The two ends of the hinge rod are respectively hinged to two opposite surfaces of the movable plate and the clamping plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the cooperation of multi-degree-of-freedom support mechanisms and positioning components, the pressure sensor and intelligent control system can accurately adapt to the shape and size of different water pump housings, effectively avoiding displacement and shaking during the welding process, and improving welding accuracy, quality, and pass rate. Furthermore, through the cooperation of the extraction plate and purification mechanism, it is easy to efficiently collect and purify harmful gases and metal shavings generated during welding, realizing the function of hazardous material treatment and improving the working environment, thus improving the protection of workers' health and reducing environmental pollution. Ultimately, it solves the problems of existing devices that can only fix in one direction, causing displacement of the processed parts during processing, resulting in unqualified processed parts, and lack of collection and treatment of pollutants, causing environmental pollution and endangering the safety of workers. 2. The analysis module simultaneously collects air pressure difference data, weight data, and tensile force data, and combines this with the weight change of the slag collection box after shutdown to accurately calculate the actual mass of the filtered material on the filter screen surface. Compared with the traditional method that relies solely on air pressure difference, this eliminates interference factors such as "abnormal air pressure difference caused by airflow fluctuations," improving the accuracy of judgment. It also calculates the "air pressure difference change caused by unit filtration volume." This threshold is not a fixed value but is dynamically adjusted based on historical filtration data to avoid misjudgments caused by changes in operating conditions. The analysis module incorporates four parameters—"light radiation intensity, gas flow rate, temperature, and humidity"—into the sterilization rate formula. When abnormalities occur during the welding process, it can promptly detect sterilization rate anomalies and calculate and adjust the required light radiation intensity to ensure the sterilization rate. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall appearance of the device proposed in this invention; Figure 2 This is a schematic diagram of the robotic arm structure proposed in this invention; Figure 3 This is a schematic diagram of the purification mechanism structure proposed in this invention; Figure 4 This is a schematic cross-sectional view of the support mechanism proposed in this invention; Figure 5 This is a schematic diagram of the support mechanism structure proposed in this invention; Figure 6 This is a schematic diagram of the positioning component structure proposed in this invention; Figure 7 This is a schematic diagram of the clamping component structure proposed in this invention; Figure 8 The present invention proposes Figure 5 Enlarged schematic diagram of the structure at part A in the middle; Figure 9 This is a flowchart of the system proposed in this invention.

[0016] The components in the diagram are numbered as follows: 1. Base; 2. Mounting bracket; 3. Support base; 4. Linear motor; 5. Control panel; 6. Purification chamber; 7. Moving base; 8. Six-axis robotic arm; 9. Plasma welding head; 10. Metal filter screen; 11. Bag mesh; 12. Activated carbon adsorption layer; 13. Ultraviolet germicidal lamp; 14. Air pump; 15. Suction plate; 16. First motor; 17. First lead screw; 18. First adjusting base; 19. Second motor; 20. Turntable; 21. Second adjusting base; 22. Mounting plate; 23. Third motor; 24. Worm gear; 25. Worm wheel; 26. Second lead screw; 27. Rack; 28. Gear; 29. ​​Fourth motor; 30. Third lead screw; 31. Moving base; 32. Moving plate; 33. Electric actuator; 34. Positioning plate; 35. Clamping plate; 36. Pressure sensor; 37. Hinge rod; 38. Slider. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Example 1: See Figures 1 to 8This invention discloses a plasma welding auxiliary device for producing water pump housings, comprising a base 1 for facilitating the installation of a mounting frame 2 and a support base 3; the mounting frame 2 is mounted on the top surface of the base 1 for facilitating the installation of a purification chamber 6; the support base 3, a linear motor 4, and a control console 5 are mounted on the top surface of the base 1; the support base 3 facilitates the support of the workpiece; the linear motor 4 facilitates the lateral movement of a six-axis robotic arm 8; the control console 5 allows operators to pre-set the dimensional parameters and welding process parameters of the water pump housing, and the control system automatically adjusts the robotic arm's movements based on these parameters to ensure accurate clamping of the water pump housing by the fixture, and monitors the pressure of the fixture in real time during the welding process, promptly responding to abnormal pressure fluctuations. Adjust the clamping force of the grippers to ensure the stability of the outer casing; the support base 3 is located at the front end of the linear motor 4, directly below the mounting frame 2, and a support mechanism is installed on the mounting frame 2; the main control panel 5 is located on one side of the linear motor 4; a purification box 6 is installed on the top surface of the mounting frame 2, which facilitates the collection of waste gas generated during processing for harmless treatment; a purification mechanism is installed inside the purification box 6; a movable base 7 is slidably connected to the linear motor 4, which facilitates the installation of a six-axis robotic arm 8; a six-axis robotic arm 8 is installed on the top surface of the movable base 7, which facilitates the control of the plasma welding head 9 to weld the processed parts; the plasma welding head 9 is installed at the output end of the six-axis robotic arm 8, and the purification mechanism includes... The purification chamber 6 includes air inlets and exhaust outlets located on both sides. Inside the purification chamber 6 is a metal filter 10, which facilitates preliminary filtration of debris within the collected harmful gases. The metal filter 10 also has high thermal conductivity, which, in conjunction with the air pump 14, keeps it at a low temperature, reducing the temperature of debris when it comes into contact with the filter and preventing damage to the filter bag 11 from hot debris. A filter bag 11 is installed on one side of the metal filter 10, which helps to block finer debris. An activated carbon adsorption layer 12 is installed on one side of the filter bag 11, which absorbs minute substances in the harmful gases that produce a pungent odor. Multiple ultraviolet lamps are installed on one side of the activated carbon adsorption layer 12. The ultraviolet germicidal lamp 13 is used to sterilize harmful gases. The air inlet of the purification box 6 is connected to an air pump 14 via an air pipe, which generates suction to draw harmful gases into the purification box 6. The other end of the air pump 14 is connected to a suction plate 15 with its output end pointing downwards via an air pipe. The suction plate 15 is located directly above the support mechanism. The support mechanism includes a first motor 16 installed inside both sides of the support base 3, which drives the first lead screw 17 to rotate. The output end of the first motor 16 is connected to the first lead screw 17 via a coupling, which drives the slider 38 to rise and fall. The slider 38 is threaded onto the first lead screw 17, which drives the first adjusting base 18 to rise and fall.Slider 38 is inserted into the upper ends of both sides of the support base 3, and a first rotating shaft is rotatably connected between the two sliders 38. A cylindrical first adjusting base 18 is fixed to the outside of the first rotating shaft, which facilitates the rotatable connection of the turntable 20. A second motor 19 is installed inside the first adjusting base 18, which drives the turntable 20 to rotate. The output end of the second motor 19 is equipped with the turntable 20, which facilitates the rotation of the workpiece for omnidirectional welding. The turntable 20 is rotatably connected to the first adjusting base 3. Two mounting ears are fixedly attached to the upper end of the base 18 and the top surface of the turntable 20. A second rotating shaft is rotatably connected between the two mounting ears. A second adjusting base 21 is fixedly attached to the outer side of the second rotating shaft. The second adjusting base 21 facilitates the multi-degree-of-freedom movement of the workpiece in conjunction with the first adjusting base 18. A mounting plate 22 is fixedly attached to the upper end of the second adjusting base 21, which facilitates the installation of positioning components. Multiple sets of positioning components are equidistantly mounted around the center on the top surface of the mounting plate 22. Adjusting components are installed longitudinally and laterally on one side of the first and second rotating shafts, respectively.

[0019] In this invention, the adjustment assembly includes a third motor 23 respectively installed on the upper end of one side of the support base 3 and on one side of the second adjustment base 21. The third motor 23 facilitates the rotation of the worm gear 24. The output end of the third motor 23 is connected to the worm gear 24 via a coupling. The worm gear 24 facilitates the rotation of the worm wheel 25. After the third motor 23 stops operating, it can self-lock to prevent self-rotation. The worm gear 25 is meshed with one side of the worm gear 24. A second lead screw 26 is fixedly connected to the center of the worm wheel 25. The second lead screw 26 facilitates the sliding of the rack 27. The two second lead screws 26 are screwed together. A rack 27 is connected to the support base 3 and the second adjusting base 21, respectively. The rack 27 is slidably connected to the upper end of one side of the support base 3 and the second adjusting base 21, respectively. The upper end of the rack 27 meshes with the gear 28, which facilitates the rotation of the first and second rotating shafts. The gear 28 is connected to one side of the first and second rotating shafts. The positioning assembly includes a fourth motor 29 mounted on the periphery of the mounting plate 22, which facilitates the rotation of the third lead screw 30. The output end of the fourth motor 29 is connected to the third lead screw 30 via a coupling. The third lead screw 30 facilitates the movement of the movable seat 31; the third lead screw 30 is rotatably mounted inside the mounting plate 22, and the movable seat 31 is threadedly connected to the third lead screw 30, which facilitates the installation of the movable plate 32 and the positioning plate 34; the movable seat 31 is slidably mounted on the top surface of the mounting plate 22, and a clamping component is mounted on the movable seat 31, including a positioning plate 34 fixed to the top surface of the movable seat 31 and a movable plate 32 slidably connected to the top surface of the movable seat 31, which facilitates the installation of the electric actuator 33 and the hinge rod 37; the movable plate 32 and the positioning plate 34... An electric actuator 33 is connected between the two plates, which facilitates the movement of the moving plate 32 towards the positioning plate 34. Both sides of the positioning plate 34 are hinged with clamping plates 35, which facilitate the inward clamping of the top of the workpiece. The clamping plates 35 are provided with anti-slip textures, and a pressure sensor 36 is installed inside the positioning plate 34 to sense the clamping force. A hinge rod 37 is provided between the clamping plate 35 and the moving plate 32, which facilitates the inward clamping of the clamping plate 35. The two ends of the hinge rod 37 are respectively hinged to the two opposite surfaces of the moving plate 32 and the clamping plate 35.

[0020] Working principle: When using this invention, first turn on the power to the device and turn on the electrical appliance. Place the workpiece on the mounting plate 22 and input the workpiece size data into the main control panel 5. According to the shape and size of the workpiece, the main control panel 5 starts the fourth motor 29. The fourth motor 29 drives the third lead screw 30 to rotate, which in turn drives the moving seat 31 to move different distances. When the moving seat 31 comes into contact with the workpiece, the pressure sensor 36 contacts the workpiece and transmits a signal to the main control panel 5. The main control panel 5 controls the fourth motor 29 to turn off and opens the electric push rod 33. The electric push rod 33 drives the moving plate 32 to move towards the positioning plate 34. At this time, the two hinge rods 37 push the clamping plate 35 to clamp inward, and the anti-slip texture fixes the workpiece. The vacuum plate 15 is moved to directly above the workpiece, and the air pump 14 and linear motor 4 are started. The linear motor 4 drives the six-axis robotic arm 8 to move through the moving base 7. The six-axis robotic arm 8 drives the plasma welding head 9 to weld the workpiece. At the same time, the first motor 16 and the first lead screw 17 drive the slider 38 to rise and fall. In conjunction with the two sets of third motors 23, the worm gear 24 is driven to rotate, which in turn drives the worm wheel 25 to rotate. The worm wheel 25 drives the second lead screw 26 to rotate. In turn, the rack 27 can drive the gear 28 to rotate under the drive of the second lead screw 26. Through the two sets of adjustment components, in conjunction with the rise and fall of the slider 38, the workpiece can move with multiple degrees of freedom. During the welding process, a large amount of harmful gases are generated. The air pump 14, together with the suction plate 15, forms a strong suction force to draw the harmful gases into the purification chamber 6. The metal filter 10 is kept at a low temperature under the continuous blowing of the air pump 14. When larger harmful particles pass through the metal filter 10, they are blocked by the metal filter 10, while smaller harmful particles are blocked by the cloth bag 11. Since the metal filter 10 cools down the harmful substances, the cloth bag 11 will not be burned by the high temperature. Subsequently, the harmful gases pass through the activated carbon adsorption layer 12 to remove the pungent odor. Finally, the ultraviolet germicidal lamp 13 sterilizes the gas, and then the treated gas is discharged. Finally, the processed parts are removed and the device is turned off.

[0021] Example 2: See Figure 9 The central control console 5 is equipped with intelligent control components, which include an analysis module and a control module. The analysis module receives and analyzes the acquired air pressure difference data, weight data, and tensile force data. It determines the air pressure difference change caused by the unit filtration volume at the corresponding location. When the air pressure difference at the corresponding location exceeds the air pressure difference change caused by the unit filtration volume, a cleaning signal is generated and transmitted to the control module. The module also receives and analyzes the acquired gas flow rate, gas temperature, and gas humidity, elucidates their impact on the sterilization rate, calculates the required light radiation intensity based on the difference between the set sterilization rate and the actual sterilization rate, and adjusts the light radiation intensity accordingly. Differential pressure sensors are installed on both sides of the metal filter screen 10 and the bag screen 11 to monitor the air pressure difference data before and after the metal filter screen 10 and the bag screen 11; a sludge collection box is installed below the metal filter screen 10 and the bag screen 11 to collect the filtered material. A weighing sensor is installed inside the sludge collection box, a weight sensor is installed at the lower end of the metal filter screen 10, and a tension sensor is installed at the upper end of the bag screen 11. Historical data is retrieved, and the air pressure difference, weight, and tension data at the locations of the metal filter screen 10 and the cloth bag screen 11 are obtained. The obtained data is then preprocessed. Based on the weight change inside the slag collection box after shutdown and the weight data at the locations of the metal filter screen 10 and the cloth bag screen 11, the mass data of the filtered material on the metal filter screen 10 and the cloth bag screen 11 can be determined. , (Considering the amount of filter material that falls due to loss of airflow pressure after shutdown); regarding quality data and The air pressure difference data within the corresponding time period are sorted, and the change in air pressure difference between adjacent collection times is calculated. ,like Changes in air pressure difference at different times satisfy: If the pressure difference change is stable, then the filtration effect of the metal filter 10 and the cloth bag 11 on the filter is stable. for The mean of all pressure difference changes within a given time period; therefore, the filtration rate per unit time at the locations of metal filter 10 and cloth filter 11 is... , The change in air pressure caused by a unit filtration volume is , The air pressure difference at the metal filter 10 position When the filtration effect of the metal filter 10 reaches a threshold, it is determined that cleaning is required, a cleaning signal is generated, and the cleaning signal is transmitted to the control module; the air pressure difference at the location of the bag mesh 11... When the filtering effect of the filter bag 11 reaches the threshold, it is determined that cleaning is required, a cleaning signal is generated, and the cleaning signal is transmitted to the control module. After receiving the cleaning signal, the control module pauses the welding operation and drives the metal filter 10 to vibrate, thereby performing a pulse backflushing operation on the bag filter 11 to clean the metal filter 10 and the bag filter 11 respectively. When the weight of the filter screens on the metal filter screen 10 and the bag filter screen 11 and the total weight of the filter screens inside the slag collection box at the corresponding position reach a preset weight threshold, a tilting signal is generated and transmitted to the control module. After receiving the tipping signal, the control module will issue a buzzer warning through the buzzer module of the intelligent control component and display the number of the tipping location on the main control panel 5 to inform the staff to clean up the debris under the filter in time. Preprocessing: The collected data is sorted according to the collection time, and corresponding items collected at the same time are processed. averaging the data and standard deviation The calculation, and the mean obtained from the calculation. and standard deviation Collect data fluctuation range for corresponding items The system is configured to compare the collected data for a given item with its fluctuation range, mark data outside the fluctuation range as outliers, and record the number of outliers. ,like If the collected data is abnormal, the data will be re-tested; if If outliers are removed, the mean of the remaining corresponding test data after outlier removal is calculated. The calculation, and the mean obtained from the calculation. This refers to the corresponding data detected at the corresponding time.

[0022] UV sterilization UV radiation , The intensity of light radiation. Residence time is the time the gas spends in the purification chamber 6. The sterilization rate is ,in , The effective volume of the purification box 6 The gas flow rate is... This represents the cross-sectional area of ​​the gas flow channel. Sensitivity coefficient; Gas humidity reduces the amount of ultraviolet light actually absorbed by microorganisms through "water film shielding". The effective dose actually absorbed by microorganisms , This refers to the relative humidity of the gas. Gas temperature affects its sensitivity to ultraviolet radiation through "microbial activity"; temperature-corrected sensitivity coefficient. , The baseline sensitivity coefficient is set at a suitable temperature of 25℃. The gas temperature; Will and Substituting the values, we get the sterilization rate. At the set gas flow rate ( ) and temperature and humidity range ( Within the UV germicidal lamp 13, the light radiation intensity can be increased. To ensure sterilization rate; within the set range, treatment is carried out by controlling flow rate, humidity and temperature.

[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A plasma welding auxiliary device for the production of water pump housings, comprising a base (1), characterized in that: The base (1) is equipped with a mounting frame (2) on its top surface. The base (1) is also equipped with a support base (3), a linear motor (4), and a control panel (5). The support base (3) is located at the front end of the linear motor (4) and directly below the mounting frame (2). A support mechanism is installed on the mounting frame (2). The control panel (5) is located on one side of the linear motor (4). A purification box (6) is installed on the top surface of the mounting frame (2). A purification mechanism is installed inside the purification box (6). A metal filter screen (10) is installed inside the purification box (6). A cloth bag (11) is installed on one side of the metal filter screen (10). The central control console (5) is equipped with an intelligent control component, which includes an analysis module and a control module; The analysis module receives and analyzes the acquired air pressure difference data, weight data, and tensile force data. It determines the change in air pressure difference caused by the unit filtration volume at the corresponding location. When the air pressure difference at the corresponding location exceeds the change in air pressure caused by the unit filtration volume, a cleaning signal is generated and transmitted to the control module. The module also receives and analyzes the acquired gas flow rate, gas temperature, and gas humidity, elucidates their impact on the sterilization rate, calculates the required light radiation intensity based on the difference between the set sterilization rate and the actual sterilization rate, and adjusts the light radiation intensity accordingly.

2. The plasma welding auxiliary device for producing a water pump housing according to claim 1, characterized in that: The analysis module performs the following steps for analyzing the pressure difference: M1: Based on the weight change inside the slag collection box after shutdown and the weight data at the positions of the metal filter screen (10) and the bag filter (11), the mass data of the filtered material on the metal filter screen (10) and the bag filter (11) can be obtained. , ; regarding quality data and The air pressure difference data within the corresponding time period are sorted, and the change in air pressure difference between adjacent collection times is calculated. ,like Changes in air pressure difference at time satisfy: If the change in air pressure difference is stable, then it can be determined that the change is stable. for The mean of all pressure difference changes within a given time period; then the filtration rate per unit time at the locations of the metal filter (10) and the cloth filter (11) is... , The change in air pressure caused by a unit filtration volume is , ; M2: Pressure difference at the location of the metal filter (10) When the filtration effect of the metal filter (10) reaches the threshold, it is determined that cleaning is required, a cleaning signal is generated, and the cleaning signal is transmitted to the control module; the air pressure difference at the location of the bag mesh (11) When the filtering effect of the bag mesh (11) reaches the threshold, it is determined that it needs to be cleaned, a cleaning signal is generated, and the cleaning signal is transmitted to the control module.

3. The plasma welding auxiliary device for producing a water pump housing according to claim 1, characterized in that: The analysis module performs the following steps to analyze the sterilization rate: N1: UV radiation level for sterilization , The intensity of light radiation. The residence time of the gas in the purification chamber (6); residence time The sterilization rate is ,in , The effective volume of the purification box (6) The gas flow rate is... This represents the cross-sectional area of ​​the gas flow channel. Sensitivity coefficient; N2: The effective dose actually absorbed by microorganisms , Relative humidity of the gas; temperature-corrected sensitivity coefficient , The baseline sensitivity coefficient is set at a suitable temperature of 25℃. The gas temperature; N3: Will and Substituting the values, we get the sterilization rate. Within the set gas flow rate and temperature / humidity range, the light radiation intensity of the ultraviolet germicidal lamp (13) can be increased. To ensure sterilization rate.

4. The plasma welding auxiliary device for producing a water pump housing according to claim 1, characterized in that: A movable base (7) is slidably connected to the linear motor (4), and a six-axis robotic arm (8) is mounted on the top surface of the movable base (7). A plasma welding head (9) is mounted on the output end of the six-axis robotic arm (8).

5. The plasma welding auxiliary device for producing a water pump housing according to claim 1, characterized in that: The purification mechanism includes an air inlet and an exhaust outlet on both sides of the purification box (6). An activated carbon adsorption layer (12) is installed on one side of the cloth net (11), and multiple ultraviolet germicidal lamps (13) are installed on one side of the activated carbon adsorption layer (12).

6. The plasma welding auxiliary device for producing a water pump housing according to claim 5, characterized in that: The air inlet of the purification box (6) is connected to an air pump (14) via an air pipe, and the other end of the air pump (14) is connected to an air extraction plate (15) with its output end pointing downwards via an air pipe. The air extraction plate (15) is located directly above the support mechanism.

7. The plasma welding auxiliary device for producing a water pump housing according to claim 1, characterized in that: The support mechanism includes a first motor (16) installed inside both sides of the support base (3). The output end of the first motor (16) is connected to a first lead screw (17) via a coupling. A slider (38) is threaded onto the first lead screw (17). The slider (38) is inserted into the upper ends of both sides of the support base (3), and a first rotating shaft is rotatably connected between the two sliders (38). A cylindrical first adjusting base (18) is fixed to the outside of the first rotating shaft. A second motor (19) is installed inside the first adjusting base (18). A turntable (20) is installed at the output end of the motor (19). The turntable (20) is rotatably connected to the upper end of the first adjusting base (18). Two mounting ears are fixed to the top surface of the turntable (20). A second rotating shaft is rotatably connected between the two mounting ears. A second adjusting base (21) is fixed to the outside of the second rotating shaft. A mounting plate (22) is fixed to the upper end of the second adjusting base (21). Multiple sets of positioning components are installed equidistantly around the center on the top surface of the mounting plate (22). Adjustment components are installed longitudinally and laterally on one side of the first rotating shaft and the second rotating shaft, respectively.

8. The plasma welding auxiliary device for producing a water pump housing according to claim 7, characterized in that: The adjustment assembly includes a third motor (23) installed on the upper end of one side of the support base (3) and the side of the second adjustment base (21). The output end of the third motor (23) is connected to a worm gear (24) via a coupling. A worm wheel (25) is meshed on one side of the worm gear (24). A second lead screw (26) is fixed at the center of the worm wheel (25). A rack (27) is threaded onto the two second lead screws (26). The rack (27) is slidably connected to the upper end of one side of the support base (3) and the side of the second adjustment base (21), respectively. A gear (28) is meshed on the upper end of the rack (27). The gear (28) is connected to the side of the first rotating shaft and the side of the second rotating shaft, respectively.

9. The plasma welding auxiliary device for producing a water pump housing according to claim 7, characterized in that: The positioning assembly includes a fourth motor (29) installed on the periphery of the mounting plate (22). The output end of the fourth motor (29) is connected to a third lead screw (30) via a coupling. The third lead screw (30) is rotatably installed inside the mounting plate (22), and a movable seat (31) is threadedly connected to the third lead screw (30). The movable seat (31) is slidably installed on the top surface of the mounting plate (22), and a clamping component is installed on the movable seat (31).

10. The plasma welding auxiliary device for producing a water pump housing according to claim 9, characterized in that: The clamping component includes a positioning plate (34) fixed to the top surface of the movable seat (31) and a movable plate (32) slidably connected to the top surface of the movable seat (31). An electric push rod (33) is connected between the movable plate (32) and the positioning plate (34). Clamping plates (35) are hinged on both sides of the positioning plate (34). Anti-slip textures are provided on the clamping plates (35). A pressure sensor (36) is installed inside the positioning plate (34). A hinge rod (37) is provided between the clamping plate (35) and the movable plate (32). The two ends of the hinge rod (37) are respectively hinged to the two opposite surfaces of the movable plate (32) and the clamping plate (35).

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