Surface treatment equipment for automobile air conditioner condenser

Abstract

The invention discloses automobile air conditioner condenser surface treatment equipment which comprises a treatment equipment shell, a conveying belt is arranged in the treatment equipment shell, a spraying box is arranged on the back face, a drying box is arranged at an outlet, a first motor is arranged in an inner cavity of the shell and drives a first lead screw to rotate, a driving block is rotationally connected to the shell, and a second motor is arranged at the bottom of the driving block and drives a second lead screw to rotate. Air cylinders are installed on the two sides of an inner cavity of the spraying box, a treatment pond is arranged at the bottom of the inner cavity of the spraying box, spraying pipes are arranged at the output ends of the air cylinders, spraying heads are distributed on the surfaces of the air cylinders, third motors are arranged at the connecting ends of the air cylinders, and the third motors can drive the spraying pipes to rotate. The condenser is stably clamped and soaked, and the soaking effect is ensured; and then the device can be moved to a spraying area to remove residual treatment liquid, different heat treatment requirements are met, all links are tightly matched and cooperatively operate, the surface heat treatment quality and stability of the condenser are improved, and the overall efficiency and quality are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive air conditioning condenser surface treatment technology, and in particular to automotive air conditioning condenser surface treatment equipment. Background Technology

[0002] Air conditioner condenser surface treatment equipment is mainly used for cleaning, corrosion protection, and strengthening of the condenser's metal surface. Through processes such as degreasing, passivation, spraying, or electrophoresis, it enhances the condenser's corrosion resistance, fouling resistance, and heat exchange efficiency, ensuring long-term stable operation. The equipment typically includes modules for pretreatment, chemical conversion film, and coating curing, combined with an automated control system to achieve efficient and environmentally friendly processing, ultimately improving the condenser's durability and heat dissipation performance.

[0003] In existing automotive air conditioning condenser surface treatment technologies, there may be issues such as inaccurate control of the condenser's movement trajectory during treatment, making it difficult to stably clamp the condenser and accurately lower it into the treatment tank for thorough immersion, resulting in poor immersion effects. Simultaneously, when removing residual treatment liquid from the condenser surface, the spraying device may not be able to flexibly adjust the nozzle angle, making it difficult to effectively complete the spraying work. Furthermore, existing technologies may not be able to flexibly adjust the number of immersions and sprays and the duration according to actual process requirements, making it difficult to fully meet different heat treatment requirements. This, in turn, affects the quality and stability of the condenser surface heat treatment, reducing the overall efficiency and quality of automotive air conditioning condenser surface treatment. Summary of the Invention

[0004] This invention provides the following technical solution: a surface treatment device for automotive air conditioning condensers, comprising a treatment device housing, a conveyor belt installed inside the treatment device housing, a spray box installed on the back of the treatment device housing, a drying box installed at the outlet of the treatment device housing, a first motor installed in the inner cavity of the treatment device housing, a first lead screw coaxially mounted on the rotor of the first motor, a drive block screwed onto the surface of the first lead screw, a second motor installed at the bottom of the drive block, a second lead screw coaxially mounted on the rotor of the second motor, a lifting rod screwed onto the surface of the second lead screw, a mechanical claw installed at the output end of the lifting rod, cylinders installed on both sides of the inner cavity of the spray box, a treatment pool installed at the bottom of the inner cavity of the spray box, a spray pipe provided at the output end of each cylinder, spray nozzles evenly distributed on the surface of the spray pipe, a third motor provided at the connection end of each spray pipe, and the rotor of each third motor coaxially connected to the spray pipe.

[0005] Preferably, storage boxes are installed on both the left and right sides of the spray box, and the upper surface of each storage box is provided with an adding port; Enclosed storage tanks are symmetrically installed on the outer surfaces of the left and right side walls of the spray box by welding or bolting. Each storage tank has a circular filling port on the top and a screw-on sealing cap. During operation, first rotate to open the sealing cap, and then inject a certain amount of surface treatment liquid or cleaning agent into the storage tank through the filling port. After injection, tighten the sealing cap to prevent liquid evaporation.

[0006] Preferably, a water pump is installed on the upper surface of each storage tank, and a delivery pipe is installed at the outlet of each water pump. The outlet end of each delivery pipe is connected to the inlet end of the spray pipe. Water pumps are fixedly installed on the upper surface of the storage tanks on both sides of the spray box via flanges or brackets. The water inlet of the water pump extends to the bottom of the inner cavity of the storage tank through a corrosion-resistant hose, and the water outlet enters the interior of the spray box through a delivery pipe that passes through a pre-set sealed joint on the side wall of the spray box. The end of the delivery pipe is connected to the water inlet of the spray pipe by a rotary sealing joint. When the spray system is started, the water pump draws surface treatment liquid from the storage tank, pressurizes it through the delivery pipe and delivers it to the spray pipe, and sprays it through the nozzles. The nozzles are high-pressure nozzles that can form a fan-shaped spray surface.

[0007] Preferably, each cylinder has a mounting bracket installed at its output end, and the third motor is mounted on the inner wall surface of the mounting bracket. A U-shaped mounting bracket is installed on the cylinder output ends on both sides of the spray box via flange connection. The mounting bracket is made of 304 stainless steel and is integrally formed by laser cutting. Its vertical section is fixed to the end of the cylinder piston rod with bolts, and the horizontal section extends into the spray box. The third motor is fixed to the inner wall surface of the horizontal section of the mounting bracket through shock-absorbing rubber pads and positioning pins. The motor shaft passes through the pre-set sealed bearing hole of the mounting bracket, and the shaft end is rigidly connected to the end of the spray pipe through a coupling. An arc-shaped guide groove is opened at the bottom of the horizontal section of the mounting bracket. The support ring sleeved on the surface of the spray pipe is embedded in the guide groove to form a rotation support structure. When the cylinder drives the mounting bracket to move the spray pipe horizontally, the third motor synchronously drives the spray pipe to maintain rotational stability under the constraint of the support ring. A double-layer lip seal ring is set on the contact surface between the mounting bracket and the spray box to prevent the treatment liquid from seeping into the cylinder assembly.

[0008] Preferably, the spray pipe is connected to the mounting frame via a bearing, and the delivery pipes all pass through the inner ring of the bearing and are connected to the spray pipe; A double-row stainless steel rotary seal bearing is embedded in the bearing mounting hole of the horizontal section of the mounting bracket inside the spray box. The outer ring of the bearing is rigidly connected to the wall of the mounting bracket hole through an interference fit, and the inner ring surface is coated with a corrosion-resistant fluororubber coating. The end of the spray pipe is processed into a stepped shaft structure, and its journal section forms a clearance fit with the inner ring of the bearing. The shaft end is axially positioned by a lock nut, allowing the spray pipe to rotate freely around the bearing centerline. An annular groove is opened at the axial center position of the inner ring of the bearing. The end of the delivery pipe is processed into an L-shaped bend structure. Its water outlet end passes through the corrosion-resistant sealing sleeve pre-set on the side wall of the mounting bracket, and is then inserted axially along the annular groove and welded to the radial interface of the water inlet end of the spray pipe, forming a rotary seal connection structure. When the third motor drives the spray pipe to rotate and adjust the spray angle of the nozzle, the delivery pipe remains stationary through the relative sliding between the L-shaped bend and the annular groove.

[0009] Preferably, an installation frame is installed on the upper surface of the drying box, and a dryer is installed inside the installation frame, with the air outlet of the dryer communicating with the interior of the drying box; Rectangular mounting holes are laser-cut into the top of the drying chamber. A 304 stainless steel mounting frame is vertically fixed to the outer edge of the holes using a continuous welding process. The industrial-grade hot air dryer is fixed inside the mounting frame using shock-absorbing bolts. The contact surface between the dryer shell and the mounting frame is filled with ceramic fiber insulation cotton. The dryer power cord is introduced through an explosion-proof junction box pre-installed on the side wall of the mounting frame. The control circuit is linked with the equipment's main control system via I / O. When the conveyor belt sends the condenser into the drying chamber, the photoelectric sensor triggers the dryer to start.

[0010] Preferably, a filter screen is installed on the upper surface of the mounting frame, the filter screen is located at the air inlet of the dryer, a frame is installed on the surface of the filter screen, and the filter screen is installed on the surface of the mounting frame by a spiral. A ring-shaped sealing groove is machined on the upper surface of the mounting frame at the top of the drying oven using a CNC punch press. A primary filter screen with a 304 stainless steel frame is embedded in the sealing groove. The filter screen adopts a composite structure of double-layer nylon mesh and activated carbon fiber. Countersunk through holes are machined at corresponding positions on the mounting frame. Cross-groove pan head bolts with spring washers are used to pass through the through holes and form a spiral connection with the threaded holes of the filter screen frame. Silicone sealant is applied to the contact surface between the filter screen and the mounting frame. An EPDM rubber sealing strip is added to the outside of the frame and tightened with bolts to form an airtight structure. When the dryer is running, outside air enters the drying oven after being filtered by the filter screen. The filter screen frame is equipped with a quick-release handle for easy periodic replacement of the filter media. A micro differential pressure sensor is installed on the side of the mounting frame to monitor the filter screen clogging status in real time. When the differential pressure exceeds the set value, the equipment alarm is triggered to prompt maintenance.

[0011] Preferably, the inner cavity of the processing device housing is provided with an installation channel, and the drive block is movably installed inside the installation channel; The channel adopts a rectangular cross-section design, and the main body of the drive block is machined into a rectangular structure that forms a clearance fit with the installation channel. Self-lubricating copper-based guide sleeves are installed at the four corners of the drive block. Nylon limit buffers are fixed to the ends of the installation channel with bolts. When the drive block moves to the end of its stroke, the limit buffers achieve soft stopping through hydraulic damping. A highly flexible shielded cable is laid axially at the bottom of the installation channel. The cable is connected to the junction box of the second motor at the bottom of the drive block through a drag chain to form a telescopic connection, ensuring the safety of the electrical circuit when the drive block reciprocates. A stainless steel dustproof brush is installed at the entrance of the installation channel to prevent spray droplets from splashing into the channel. Temperature and humidity sensors are installed inside the channel to monitor the operating environment in real time.

[0012] Preferably, a slider is mounted on the surface of the lifting rod, and a slide rail is mounted on the bottom of the drive block at a position corresponding to the slider; A flat mounting base is machined on the cylindrical surface of the lifting rod using a CNC lathe. A preloaded ball bearing slider is fixed to the base surface using hexagonal socket head cap screws. The slider is filled with lithium-based grease and equipped with a double-row steel ball circulating track. A slide rail mounting groove is machined at the corresponding position on the bottom of the drive block using wire cutting. Polyurethane buffer heads are installed at both ends of the slide rail to prevent the slider from falling out. The contact surface between the slider and the slide rail is made of GCr15 bearing steel and has undergone high-frequency quenching treatment. A Hall effect displacement sensor is installed on the moving end face of the slider to monitor the lifting position in real time. The sensor signal line is led to the central control system through the wiring hole inside the drive block to form a closed-loop control.

[0013] Preferably, a magnetic filter and a liquid level sensor are installed at the bottom of the treatment tank, and the magnetic filter includes a pull-out array of permanent magnets. A rectangular installation window is made in the bottom plate of the treatment tank at the bottom of the spray box using CNC stamping process. The edge of the window is welded with a 304 stainless steel sealing flange. The frame of the magnetic filter device is fixed to the flange surface with bolts. The frame is filled with an array of neodymium iron boron permanent magnets at equal intervals. The magnetic poles are arranged alternately in N-S to form a high gradient magnetic field. The surface of the permanent magnets is coated with a Teflon anti-corrosion coating. The side wall of the frame is equipped with a pull-out guide rail and a quick-release handle. When cleaning is required, the entire magnet array can be pulled out of the treatment tank by following the guide rail with the handle.

[0014] In summary, compared with the prior art, the present invention provides a surface treatment device for automotive air conditioning condensers, which has the following beneficial effects: The added first and second motors drive the first and second lead screws to rotate, respectively, enabling the mechanical gripper to precisely control its movement trajectory. This allows for stable clamping of the condenser and flexible descent into the treatment tank for immersion, ensuring full contact between the condenser and the treatment liquid for optimal immersion effect. After immersion for a period, the mechanical gripper quickly rises, moving the condenser to the spraying area. A cylinder adjusts the position of the spray pipe, and a third motor drives the spray pipe to rotate, adjusting the spray nozzle's tilt angle to spray the condenser effectively, removing residual treatment liquid from the surface. The mechanical gripper then descends again for immersion, and this cycle repeats. The number of immersions and sprays, as well as the duration, can be flexibly adjusted according to actual process requirements to fully meet different heat treatment needs. Finally, the drying chamber dries and outputs the condenser after multiple immersions and sprays. The entire heat treatment process is closely coordinated, with precise mechanical gripper operation and reasonable connection between spraying and immersion stages. The collaborative operation of all structures effectively improves the quality and stability of the condenser surface heat treatment, while also enhancing the overall efficiency and quality of automotive air conditioning condenser surface treatment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a cross-sectional structural schematic diagram of the spray box of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of the spray pipe of the present invention.

[0019] Figure 5 It is a structural schematic diagram of the drying box of the present invention.

[0020] Figure 6 This is a schematic diagram of the installation structure of the driver block of the present invention.

[0021] Figure 7 This is a schematic diagram of the installation structure of the mechanical claw of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Processing equipment casing; 2. Conveyor belt; 3. Spray box; 4. Drying box; 5. Drive block; 6. First motor; 7. First lead screw; 8. Second motor; 9. Second lead screw; 10. Lifting rod; 11. Mechanical gripper; 12. Cylinder; 13. Processing tank; 14. Third motor; 15. Spray pipe; 16. Nozzle; 17. Storage tank; 18. Addition port; 19. Water pump; 20. Conveying pipe; 21. Mounting bracket; 22. Mounting frame; 23. Dryer; 24. Filter screen; 25. Installation channel; 26. Slider; 27. Slide rail. Detailed Implementation

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] This invention provides the following technical solution: Please refer to Figure 1 The automotive air conditioning condenser surface treatment equipment includes a treatment equipment housing 1, a conveyor belt 2 installed inside the treatment equipment housing 1, a spray box 3 installed on the back of the treatment equipment housing 1, and a drying box 4 installed at the outlet of the treatment equipment housing 1. (See also...) Figure 6 The inner cavity of the processing equipment housing 1 is equipped with a first motor 6. A first lead screw 7 is coaxially mounted on the rotor of the first motor 6. A drive block 5 is screwed onto the surface of the first lead screw 7. Please refer to [link / reference]. Figure 7 A second motor 8 is mounted at the bottom of the drive block 5. A second lead screw 9 is coaxially mounted on the rotor of the second motor 8. A lifting rod 10 is screwed onto the surface of the second lead screw 9. A mechanical claw 11 is mounted on the output end of the lifting rod 10. Please refer to [link / reference]. Figure 3 Cylinders 12 are installed on both sides of the inner cavity of the spray box 3, and a treatment tank 13 is installed at the bottom of the inner cavity of the spray box 3. Please refer to [link / reference]. Figure 4 Each cylinder 12 has a spray pipe 15 at its output end. Spray nozzles 16 are evenly distributed on the surface of the spray pipe 15. Each spray pipe 15 has a third motor 14 at its connection end. The rotor of the third motor 14 is coaxially connected to the spray pipe 15.

[0025] The first motor 6 drives the first lead screw 7 to rotate, enabling the drive block 5 to move laterally. Combined with the second motor 8 driving the second lead screw 9 to rotate, the lifting rod 10 moves longitudinally, allowing the mechanical claw 11 to be flexibly and accurately positioned within the processing equipment housing 1, facilitating the gripping and placement of the condenser and greatly improving operational flexibility and automation. The cylinder 12 inside the spray box 3 can adjust the position of the spray pipe 15, and the third motor 14 drives the spray pipe 15 to rotate, allowing the nozzle 16 to cover the condenser surface from multiple angles and in all directions for spraying operations, ensuring uniform processing. The drying box 4 is located at the outlet of the processing equipment housing 1, which can quickly dry the sprayed condenser to prevent liquid residue from affecting subsequent processes. The coordinated operation of all structures effectively improves the overall efficiency and quality of automotive air conditioning condenser surface treatment. Please see Figure 3 Storage boxes 17 are installed on both the left and right sides of the spray box 3, and the upper surface of each storage box 17 is provided with an addition port 18. Closed storage tanks 17 are symmetrically installed on the outer surfaces of the left and right side walls of the spray box 3 by welding or bolting. Each storage tank 17 has a circular filling port 18 on the top and is equipped with a screw-on sealing cap. During operation, first rotate to open the sealing cap, and inject a certain amount of surface treatment liquid or cleaning agent into the storage tank 17 through the filling port 18. After injection, tighten the sealing cap to prevent liquid evaporation.

[0026] Water pumps 19 are installed on the upper surface of storage tank 17. Please refer to [link / reference]. Figure 4 Each of the water pump 19 outlets is equipped with a delivery pipe 20, and the outlet end of the delivery pipe 20 is connected to the inlet end of the spray pipe 15. Water pumps 19 are fixedly installed on the upper surface of storage tanks 17 on both sides of the spray box 3 via flanges or brackets. The inlet of the water pump 19 extends to the bottom of the inner cavity of the storage tank 17 through a corrosion-resistant hose, and the outlet enters the interior of the spray box 3 through a pre-set sealing joint on the side wall of the spray box 3 via a delivery pipe 20. The end of the delivery pipe 20 is rotatably connected to the inlet of the spray pipe 15 with a rotary sealing joint. When the spray system is started, the water pump 19 draws surface treatment liquid from the storage tank 17, pressurizes it through the delivery pipe 20 and delivers it to the spray pipe 15, and sprays it through the nozzle 16. The nozzle 16 is a high-pressure nozzle 16, which can form a fan-shaped spray surface.

[0027] Each cylinder 12 has a mounting bracket 21 installed at its output end, and the third motor 14 is installed on the inner wall surface of the mounting bracket 21. A U-shaped mounting bracket 21 is installed on the output end of the cylinder 12 on both sides of the inner cavity of the spray box 3 via a flange connection. The mounting bracket 21 is made of 304 stainless steel and is integrally formed by laser cutting. Its vertical section is fixedly connected to the end of the piston rod of the cylinder 12 by bolts, and its horizontal section extends into the interior of the spray box 3. The third motor 14 is fixed to the inner wall surface of the horizontal section of the mounting bracket 21 by shock-absorbing rubber pads and positioning pins. The motor shaft passes through the pre-set sealed bearing hole of the mounting bracket 21, and the shaft end is rigidly connected to the end of the spray pipe 15 by a coupling. An arc-shaped guide groove is opened at the bottom of the horizontal section of the mounting bracket 21. The support ring sleeved on the surface of the spray pipe 15 is embedded in the guide groove to form a rotation support structure. When the cylinder 12 drives the mounting bracket 21 to drive the spray pipe 15 to perform horizontal reciprocating motion, the third motor 14 synchronously drives the spray pipe 15 to maintain rotational stability under the constraint of the support ring. A double-layer lip seal ring is set on the contact surface between the mounting bracket 21 and the spray box 3 to prevent the treatment liquid from seeping into the cylinder 12 assembly.

[0028] The spray pipe 15 is connected to the mounting bracket 21 by a bearing, and the delivery pipes 20 all pass through the inner ring of the bearing and are connected to the spray pipe 15. A double-row stainless steel rotary seal bearing is embedded in the bearing mounting hole of the mounting bracket 21 in the inner cavity of the spray box 3. The outer ring of the bearing is rigidly connected to the wall of the mounting bracket 21 through an interference fit, and the inner ring surface is coated with a corrosion-resistant fluororubber coating. The end of the spray pipe 15 is processed into a stepped shaft structure, and its journal section is clearance-fitted with the inner ring of the bearing. The shaft end is axially positioned by a lock nut, so that the spray pipe 15 can rotate freely around the bearing center line. An annular groove is opened at the axial center position of the inner ring of the bearing. The end of the delivery pipe 20 is processed into an L-shaped bend structure. Its water outlet end passes through the corrosion-resistant sealing sleeve pre-set on the side wall of the mounting bracket 21, and is inserted axially along the annular groove and welded to the radial interface of the water inlet end of the spray pipe 15 to form a rotary seal connection structure. When the third motor 14 drives the spray pipe 15 to rotate and adjust the spray angle of the nozzle 16, the delivery pipe 20 remains stationary through the relative sliding between the L-shaped bend and the annular groove.

[0029] Please see Figure 5 The upper surface of the drying oven 4 is equipped with a mounting frame 22, please refer to [reference needed]. Figure 2 The dryer 23 is installed inside the mounting frame 22, and the air outlet of the dryer 23 is connected to the inside of the drying box 4; Rectangular mounting holes are laser-cut on the top of the drying chamber 4. A 304 stainless steel mounting frame 22 is vertically fixed to the outer edge of the holes using a continuous welding process. The industrial-grade hot air dryer 23 is fixed inside the mounting frame 22 by a set of shock-absorbing bolts. The contact surface between the dryer 23 shell and the mounting frame 22 is filled with ceramic fiber insulation cotton. The power cord of the dryer 23 is introduced through an explosion-proof junction box pre-installed on the side wall of the mounting frame 22. The control circuit is linked with the equipment's main control system for I / O. When the conveyor belt 2 sends the condenser into the drying chamber 4, the photoelectric sensor triggers the dryer 23 to start.

[0030] Please see Figure 5 A filter screen 24 is installed on the upper surface of the mounting frame 22. The filter screen 24 is located at the air inlet of the dryer 23. A frame is installed on the surface of the filter screen 24. The filter screen 24 is installed on the surface of the mounting frame 22 by a spiral. An annular sealing groove is machined on the upper surface of the mounting frame 22 at the top of the drying chamber 4 using a CNC punch press. A primary filter screen 24 with a 304 stainless steel frame is embedded in the sealing groove. The filter screen 24 adopts a composite structure of double-layer nylon mesh and activated carbon fiber. Countersunk through holes are machined at corresponding positions on the mounting frame 22. Cross-groove pan head bolts with spring washers are used to pass through the through holes and form a spiral connection with the threaded holes of the filter screen 24 frame. Silicone sealant is applied to the contact surface between the filter screen 24 and the mounting frame 22. An EPDM rubber sealing strip is added to the outside of the frame and tightened with bolts to form an airtight structure. When the dryer 23 is running, the outside air enters the drying chamber 4 after being filtered by the filter screen 24. The filter screen 24 frame is equipped with a quick-release handle for easy periodic replacement of the filter material. A micro differential pressure sensor is installed on the side of the mounting frame 22 to monitor the filter screen clogging status in real time. When the differential pressure exceeds the set value, the equipment alarm is triggered to prompt maintenance.

[0031] The inner cavity of the processing equipment housing 1 is equipped with an installation channel 25, and the drive block 5 is movably installed inside the installation channel 25; The channel cross-section adopts a rectangular cross-section design. The main body of the drive block 5 is machined into a rectangular structure that forms a clearance fit with the installation channel 25. Self-lubricating copper-based guide sleeves are installed at the four corners of the drive block 5. Nylon limit buffers are fixed to the ends of the installation channel 25 with bolts. When the drive block 5 moves to the end of its stroke, the limit buffers achieve soft stopping through hydraulic damping. A highly flexible shielded cable is laid axially at the bottom of the installation channel 25. The cable is connected to the junction box of the second motor 8 at the bottom of the drive block 5 through a drag chain to form a telescopic connection, ensuring the safety of the electrical circuit when the drive block 5 reciprocates. A stainless steel dustproof brush is installed at the entrance of the installation channel 25 to prevent spray droplets from splashing into the channel. Temperature and humidity sensors are installed inside the channel to monitor the operating environment in real time.

[0032] Please see Figure 7 A slider 26 is installed on the surface of the lifting rod 10, and a slide rail 27 is installed on the bottom of the drive block 5 at the position corresponding to the slider 26. A flat mounting base is machined on the cylindrical surface of the lifting rod 10 using a CNC lathe. A preloaded ball bearing slider 26 is fixed to the base surface using hexagonal socket head cap screws. The slider 26 is filled with lithium-based grease and equipped with a double-row steel ball circulating track. A mounting groove for the slide rail 27 is machined at the corresponding position at the bottom of the drive block 5 using wire cutting. Polyurethane buffer heads are installed at both ends of the slide rail 27 to prevent the slider 26 from falling out. The contact surface between the slider 26 and the slide rail 27 is made of GCr15 bearing steel and has been treated with high-frequency quenching. A Hall effect displacement sensor is installed on the moving end face of the slider 26 to monitor the lifting position in real time. The sensor signal line is led to the central control system through the wire hole inside the drive block 5 to form a closed-loop control.

[0033] Please see Figure 3 The bottom of the treatment tank 13 is equipped with a magnetic filter and a liquid level sensor. The magnetic filter includes a pull-out array of permanent magnets. A rectangular installation window is made in the bottom plate of the treatment pool 13 at the bottom of the inner cavity of the spray box 3 using CNC stamping process. The edge of the window is welded with a 304 stainless steel sealing flange. The frame of the magnetic filter device is fixed to the flange surface with bolts. The frame is equipped with a neodymium iron boron permanent magnet array at equal intervals. The magnetic poles are arranged alternately in N-S to form a high gradient magnetic field. The surface of the permanent magnet is coated with a Teflon anti-corrosion coating. The side wall of the frame is equipped with a pull-out guide rail and a quick-release handle. When cleaning is required, the entire magnet array can be pulled out of the treatment pool 13 by using the handle along the guide rail. First, the condenser enters the outer shell 1 of the processing equipment via conveyor belt 2. The first motor 6 drives the first lead screw 7 to move the drive block 5 laterally, and the second motor 8 drives the second lead screw 9 to move the lifting rod 10 longitudinally. The mechanical claw 11 flexibly and accurately grabs the condenser to the spray box 3. Inside the spray box 3, the cylinder 12 adjusts the position of the mounting bracket 21, and the third motor 14 drives the spray pipe 15 to rotate. The water pump 19 draws surface treatment liquid from the storage tank 17 and delivers it to the spray pipe 15 via the conveying pipe 20. The liquid is sprayed onto the surface of the condenser from multiple angles and in all directions through the high-pressure nozzle 16. The treatment liquid flows into the treatment pool 13 and is filtered by the magnetic filter device. Subsequently, the condenser is sent to the drying box 4 via conveyor belt 2. The photoelectric sensor triggers the dryer 23 to start. External air enters the drying box 4 after being filtered by the filter screen 24 to dry the condenser. Finally, the dried condenser is sent out of the equipment via conveyor belt 2. During this process, the drive block 5 moves within the installation channel 25, and the lifting rod 10 achieves stable lifting and lowering through the cooperation of the slider 26 and the slide rail 27. The liquid level sensor in the treatment pool 13 monitors the liquid level in real time. Disassembly of mechanical gripper 11 and lifting-related components: First, disconnect the power supply and disconnect the wiring of the second motor 8 at the bottom of the drive block 5. Then, disassemble the connecting parts between the lifting rod 10 and the mechanical gripper 11. After that, remove the lifting rod 10 from the drive block 5. During this process, pay attention to the separation of the slider 26 and the slide rail 27 to avoid damage.

[0034] Disassembly of the three components of the spray box: First, close the relevant valves, disconnect the power cord of the water pump 19 on the storage tank 17 and its connection with the delivery pipe 20, and remove the water pump 19; then disconnect the connection between the third motor 14 on the cylinder 12 output end mounting bracket 21 and the spray pipe 15, and carefully pull the spray pipe 15 out of the bearing of the mounting bracket 21, paying attention to the separation of the rotary seal structure between the delivery pipe 20 and the spray pipe 15; then remove the connection between the cylinder 12 and the mounting bracket 21.

[0035] Disassembly of the four components of the drying oven: First, disconnect the power supply to the dryer 23, remove the shock-absorbing bolt group between the dryer 23 and the mounting frame 22, and remove the dryer 23; then remove the spiral connecting bolts between the filter screen 24 frame and the mounting frame 22, and remove the filter screen 24.

[0036] Disassembly of drive block 5 and lead screw assembly: Disconnect the power cord of the first motor 6, remove the connection between the first motor 6 and the processing equipment housing 1, then carefully remove the first lead screw 7 from the rotor of the first motor 6, and then remove the drive block 5 from the installation channel 25. Pay attention to the arrangement of cables and cable chains in the installation channel 25.

[0037] Disassembly of components in treatment tank 13: First, drain the liquid in treatment tank 13, then remove the bolt connection between the magnetic filter device and the bottom plate of treatment tank 13, pull out the pull-out permanent magnet array from treatment tank 13 using the quick-release handle, and finally remove the liquid level sensor. Installation of components in treatment tank 13: First, install the liquid level sensor at the designated position at the bottom of treatment tank 13; then, push the pull-out permanent magnet array of the magnetic filter device into the frame at the bottom of treatment tank 13 along the guide rail, and fix the frame to the sealing flange of the bottom plate of treatment tank 13 with bolts.

[0038] Installation of drive block 5 and lead screw assembly: Install the first lead screw 7 onto the rotor of the first motor 6 and fix the first motor 6 inside the processing equipment housing 1; then put the drive block 5 into the installation channel 25, connect the cable in the installation channel 25 to the wiring of the second motor 8 at the bottom of the drive block 5, and ensure that the drive block 5 can move flexibly within the installation channel 25.

[0039] Installation of the four components of the drying oven: First, embed the frame of the filter screen 24 with the EPDM rubber sealing strip into the annular sealing groove on the upper surface of the mounting frame 22, and fix the filter screen 24 to the mounting frame 22 with cross-groove pan head bolts with spring washers; then, place the dryer 23 into the mounting frame 22, fix the dryer 23 with the shock-absorbing bolt set, and connect the power cord and control line.

[0040] Installation of spray box 3 components: First, install cylinder 12 on both sides of the inner cavity of spray box 3, and connect mounting bracket 21 to the output end of cylinder 12 through flange; then fix the third motor 14 to the inner wall surface of the horizontal section of mounting bracket 21 through shock-absorbing rubber pads and positioning pins, insert the stepped shaft structure at the end of spray pipe 15 into the inner ring of the preset bearing of mounting bracket 21, and use lock nuts to achieve axial positioning, and connect the coupling of the third motor 14 and spray pipe 15; next, fix water pump 19 to the upper surface of storage tank 17 through flange or bracket, connect the water inlet of water pump 19 to the corrosion-resistant hose at the bottom of the inner cavity of storage tank 17, and connect the water outlet of water pump 19 to delivery pipe 20, and connect the end of delivery pipe 20 to the water inlet of spray pipe 15 through a rotary sealing joint.

[0041] Installation of mechanical gripper 11 and lifting-related components: First, install slider 26 onto the surface of lifting rod 10, and install slide rail 27 onto the corresponding position at the bottom of drive block 5 to ensure that slider 26 can slide smoothly on slide rail 27; then install lifting rod 10 onto drive block 5, connect the transmission structure of second motor 8 and lifting rod 10, and finally install mechanical gripper 11 to the output end of lifting rod 10 and connect the relevant control circuit.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for automotive air conditioning condensers, comprising a treatment device housing (1), characterized in that: A conveyor belt (2) is installed inside the outer casing (1) of the processing equipment. A spray box (3) is installed on the back of the outer casing (1). A drying box (4) is installed at the outlet of the outer casing (1). A first motor (6) is installed inside the inner cavity of the outer casing (1). A first lead screw (7) is coaxially mounted on the rotor of the first motor (6). A drive block (5) is screwed onto the surface of the first lead screw (7). A second motor (8) is installed at the bottom of the drive block (5). A second lead screw (9) is coaxially mounted on the rotor of the second motor (8). A lifting rod (10) is screwed onto the surface of the second lead screw (9). A mechanical claw (11) is installed at the output end of the lifting rod (10). Cylinders (12) are installed on both sides of the inner cavity of the spray box (3). A treatment pool (13) is installed at the bottom of the inner cavity of the spray box (3). Spray pipes (15) are provided at the output ends of the cylinders (12). Spray nozzles (16) are evenly distributed on the surface of the spray pipes (15). A third motor (14) is provided at the connection end of the spray pipes (15). The rotor of the third motor (14) is coaxially connected to the spray pipes (15).

2. The automotive air conditioning condenser surface treatment equipment according to claim 1, characterized in that: Storage boxes (17) are installed on both the left and right sides of the spray box (3), and the upper surface of each storage box (17) is provided with an addition port (18).

3. The automotive air conditioning condenser surface treatment equipment according to claim 2, characterized in that: Water pumps (19) are installed on the upper surface of each storage tank (17), and delivery pipes (20) are installed at the outlets of each water pump (19). The outlet of each delivery pipe (20) is connected to the inlet of each spray pipe (15).

4. The automotive air conditioning condenser surface treatment equipment according to claim 3, characterized in that: Each cylinder (12) has a mounting bracket (21) installed at its output end, and the third motor (14) is installed on the inner wall surface of the mounting bracket (21).

5. The automotive air conditioning condenser surface treatment equipment according to claim 4, characterized in that: The spray pipe (15) is connected to the mounting bracket (21) by a bearing, and the delivery pipe (20) passes through the inner ring of the bearing and is connected to the spray pipe (15).

6. The automotive air conditioning condenser surface treatment equipment according to claim 1, characterized in that: The upper surface of the drying box (4) is equipped with an installation frame (22), and a dryer (23) is installed inside the installation frame (22). The air outlet of the dryer (23) is connected to the interior of the drying box (4).

7. The automotive air conditioning condenser surface treatment equipment according to claim 6, characterized in that: A filter screen (24) is installed on the upper surface of the mounting frame (22). The filter screen (24) is located at the air inlet of the dryer (23). A frame is installed on the surface of the filter screen (24). The filter screen (24) is installed on the surface of the mounting frame (22) by a spiral.

8. The automotive air conditioning condenser surface treatment equipment according to claim 1, characterized in that: The inner cavity of the processing equipment housing (1) is equipped with an installation channel (25), and the drive block (5) is movably installed inside the installation channel (25).

9. The automotive air conditioning condenser surface treatment equipment according to claim 1, characterized in that: The surface of the lifting rod (10) is equipped with a slider (26), and the bottom of the drive block (5) is equipped with a slide rail (27) corresponding to the slider (26).

10. The automotive air conditioning condenser surface treatment equipment according to claim 1, characterized in that: The bottom of the treatment tank (13) is equipped with a magnetic filter and a liquid level sensor. The magnetic filter includes a pull-out array of permanent magnets.

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