CN113601325B - Intelligent repair device for defects of paint surface of automobile body covering part - Google Patents
Intelligent repair device for defects of paint surface of automobile body covering part Download PDFInfo
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- CN113601325B CN113601325B CN202110922717.1A CN202110922717A CN113601325B CN 113601325 B CN113601325 B CN 113601325B CN 202110922717 A CN202110922717 A CN 202110922717A CN 113601325 B CN113601325 B CN 113601325B
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- main shell
- spraying
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- 239000003973 paint Substances 0.000 title claims abstract description 49
- 230000007547 defect Effects 0.000 title claims abstract description 33
- 230000008439 repair process Effects 0.000 title claims abstract description 28
- 238000005498 polishing Methods 0.000 claims abstract description 107
- 238000000227 grinding Methods 0.000 claims abstract description 101
- 238000005507 spraying Methods 0.000 claims abstract description 78
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 7
- 238000002310 reflectometry Methods 0.000 claims description 5
- 239000004922 lacquer Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 22
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 208000037805 labour Diseases 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides an intelligent repair device for paint surface defects of an automobile body covering part, which comprises an air duct device, a main shell, a grinding and polishing spraying bin, a turbine grinding and polishing device and a control system, wherein the air duct device is arranged at the upper part of the main shell; the turbine grinding and polishing device comprises a central shaft, a turbine and a grinding and polishing disc, a spray head and a negative pressure suction head are arranged in the grinding and polishing spraying bin, the spray head is connected with a paint spraying pump through a pipeline, and the negative pressure suction head is connected with the negative pressure pump through a pipeline. According to the invention, hot-blow softening, grinding and polishing, paint spraying and dust removal are integrated, the whole set of repair process has the characteristics of automation, controllability, high efficiency, accuracy, environmental protection and the like, the traditional manual grinding and spraying operation is replaced, the automation and intelligentization level of the process is improved, the consistency and reliability of product defect repair are improved, and the repair efficiency and repair quality level are improved.
Description
Technical Field
The invention relates to a device for repairing a paint surface defect, in particular to an intelligent device for repairing the paint surface defect of an automobile body covering part.
Background
The automobile body panel is the highest in percentage in whole area, influences the vehicle outward appearance, guarantees the first protective screen of whole car safety, mainly includes: a hood, a trunk lid (tailgate), a front enclosure, a rear enclosure, side walls, a door, and the like. The paint surface defect identification and repair of the automobile body covering part are process links with high labor cost and working hour consumption in the fields of whole automobile manufacturing and automobile repair. Common vehicle body panel finish defects include foreign objects, sagging, craters, spray contamination, droplets, flow, beads, scratches, touch marks, and the like. The method for repairing the paint defects of the automobile body covering part at the present stage is mainly characterized in that workers hold different types of tools to polish, blow and spray the paint according to the types and characteristics of the paint defects by experience. The repair method has the defects of high experience dependence, complex process, high labor intensity, unstable repair quality, easy additional damage to the paint surface, low single-point repair efficiency, high labor cost, long repair period and the like. In summary, with the development of the intellectualization of the manufacturing industry, it is necessary to design and develop an intelligent and automatic paint defect repairing apparatus, which forms a repairing unit with an independent repairing function by constructing a repairing unit body, and forms a repairing device with various geometric shapes and defect types adaptability by applying a matrix idea and by digitally combining the unit bodies, so as to meet the requirement of the automatic repairing of the complicated and variable paint defects of various vehicles.
Disclosure of Invention
In order to solve the technical problems, the invention provides an intelligent repair device for the paint surface defects of an automobile body covering part, which comprises an air duct device, a main shell, a grinding and polishing spraying bin, a turbine grinding and polishing device and a control system, wherein the air duct device is arranged at the upper part of the main shell, the grinding and polishing spraying bin is arranged at the lower part of the main shell, and the air duct device, the main shell and the grinding and polishing spraying bin are communicated; the upper part of the air channel device is provided with an air inlet channel, the air inlet channel is provided with a flow control valve, a flow sensor is arranged in the flow control valve and used for detecting the gas flow, the flow control valve is connected with a control system through a circuit, and the control system controls the opening of the flow control valve; the flow control valve is connected with the air compression pump; the turbine grinding and polishing device comprises a central shaft, a turbine and a grinding and polishing disc, the upper end and the lower end of the central shaft are pivoted in the main shell through a supporting shaft bearing, the turbine is arranged at the lower part of the central shaft and positioned in the main shell, the lower end of the central shaft is connected with the grinding and polishing disc, and the grinding and polishing disc is positioned in a grinding and polishing spraying bin; and a sprayer and a negative pressure suction head are arranged in the grinding and polishing spraying bin, the sprayer is connected with a paint spraying pump through a pipeline, and the negative pressure suction head is connected with a negative pressure pump through a pipeline.
The air duct device comprises a rectifying bin, a gas collecting bin and an accelerating guide plate, wherein the rectifying bin is of a horn-shaped structure, an air inlet channel is arranged at the upper part of the rectifying bin, and the lower end of the rectifying bin is in threaded connection with the gas collecting bin; the gas collection bin is of a cylindrical structure, the acceleration guide plate is arranged at the bottom of the gas collection bin, and the acceleration guide plate is in threaded connection with the gas collection bin; the middle part of the accelerating guide plate is provided with a tapered air guide hole protruding downwards, and the inner surface of the air guide hole is of a tapered curved surface structure; the accelerating guide plate is provided with a plurality of tapered air guide holes which are distributed at equal intervals around the circumferential direction of the tapered air guide holes, and the inner surfaces of the tapered air guide holes are of oblique tapered structures.
The upper part of the rectifying bin is provided with a pressure measuring hole, a pressure sensor is arranged in the pressure measuring hole, and the pressure sensor is connected with a control system through a circuit.
The main shell is of a hollow cylindrical structure, a high-heat-reflectivity coating is arranged on the inner wall of the main shell, an annular bulge is arranged in the middle of the inner wall, heaters which are distributed circumferentially at equal intervals are arranged above the annular bulge, flow guide channels which are distributed along the axial direction of the main shell are formed between adjacent heaters, and the heaters are connected with a control system through a circuit; a temperature sensor is also arranged in the main shell and is connected with a control system through a circuit.
Furthermore, a turbine of the turbine grinding and polishing device comprises a rotating shaft and an impeller, the rotating shaft and the impeller are of an integrally formed structure, the rotating shaft is in a stepped shaft shape, the impeller is positioned in the middle of the rotating shaft, the upper part of the rotating shaft is fixedly connected with a central shaft, and the lower part of the rotating shaft is provided with threads; the upper part of the grinding and polishing disc is provided with a connecting shaft, and the top end of the connecting shaft is provided with a threaded connector which is in threaded connection with a rotating shaft of the turbine.
The upper end of the main shell is provided with a support grid, and the middle of the support grid is provided with an upper shaft hole; an isolation grating is arranged between the main shell and the grinding, polishing and spraying bin, and a lower shaft hole is arranged in the middle of the isolation grating; the upper end and the lower end of a central shaft of the turbine grinding and polishing device are respectively pivoted in the upper shaft hole and the lower shaft hole through supporting bearings.
The grinding and polishing spraying bin is of a round table type hollow structure, the diameter of the upper half part is smaller than that of the lower half part, soft brushes distributed in the circumferential direction are arranged on the lower edge of the grinding and polishing spraying bin, the soft brushes are in contact with the paint surface of the automobile body, and the grinding and polishing surface of the grinding and polishing disc is lower than the lower edge of the grinding and polishing spraying bin and higher than the lower edge of the soft brushes.
The inner wall of the grinding and polishing spraying bin is provided with a plurality of connecting holes, the spray head and the negative pressure suction head are respectively arranged in the connecting holes, and the pipeline is arranged outside the main shell and is connected with the main shell through a fixing buckle; and a spraying sensor and a concentration sensor are also arranged in the grinding and polishing spraying bin and are connected with a control system through lines.
Furthermore, the air duct device, the main shell and the grinding and polishing spraying bin are all in threaded connection.
The working principle of the invention is as follows:
the flow control valve of the device is connected with an air compression pump, and the lower part of a grinding and polishing spraying bin of the device is buckled at the defect of the painted surface to be ground, polished and sprayed, so that a grinding and polishing disc is in contact with the painted surface.
The air compression pump is started to convey pressure airflow into the device, the airflow enters the rectification bin from the air inlet channel of the air channel device, the rectification bin smoothes the airflow according to the basic principle of hydromechanics, the flow speed of the pressure airflow is reduced, the pressure is improved, the airflow is enriched and stabilized in the air collection bin after being rectified by the rectification bin, some turbulence in the airflow is eliminated, the stabilized airflow is accelerated to be led out through the tapered air guide holes in the accelerating guide plate and flows into the main shell, the tapered air guide holes play an auxiliary role, and the leading-out efficiency of the airflow is improved. The spiral connection mode can be according to different demands, change and adjust the volume of gas collection storehouse and the relative position of guide plate in air duct device with higher speed.
The pressure sensor on the upper part of the rectifying bin monitors the gas pressure in the air duct device, transmits a pressure signal to the control system in real time, and controls the opening of the flow control valve by the control system so as to control the gas flow entering the device.
The airflow enters the main shell after turbulence elimination, flow stabilization and acceleration of the airflow through the air duct device, the heater in the main shell is electrified to heat the airflow, the heated airflow flows downwards along a flow guide channel formed between the heaters, and the high-heat-reflectivity coating is used for reducing diffusion of heat radiation, keeping the temperature in the cavity and improving the heating efficiency of the air; the temperature sensor monitors the temperature of the heater and the temperature of the air flow in real time, and transmits data to the control system, so that the control system adjusts electric power applied to the heater to achieve effective control of the temperature of the air.
The heated air flow continuously circulates downwards, when the heated air flow flows through the turbine grinding and polishing device, the high-temperature and high-pressure air flow drives the turbine of the turbine grinding and polishing device to rotate, the turbine drives the central shaft to rotate in the supporting bearing, and then the grinding and polishing disc at the lower end of the central shaft is driven to rotate, so that the grinding and polishing operation on the painted surface is realized; the high-temperature air flow has the functions of increasing the rotating speed of the turbine and softening the paint surface at the same time.
When the grinding and polishing operation is carried out, the negative pressure pump is started, the negative pressure suction head in the grinding and polishing spraying bin sucks out air flow flowing into the grinding and polishing spraying bin and chip dust generated by grinding and polishing together, so that the environmental cleanliness of the grinding and polishing spraying bin is ensured, the damage to the paint surface caused by the attachment of waste on the operation surface is avoided, and the grinding and spraying effect is improved.
And starting a paint spraying pump after grinding and polishing, spraying and repairing the ground and polished paint surface, and simultaneously cleaning and sucking wastes such as dust, aerosol and the like generated in the spraying operation by using the negative pressure suction head until the repairing is finished.
The invention has the beneficial effects that:
the invention can automatically, efficiently and accurately realize the polishing and spraying repair work of the defects of the automobile paint surface, integrates hot blowing softening, grinding and polishing, paint spraying and dust removal, takes the compressed air with the standard pressure in a factory as a main power source and a working medium, forms working air flow through the treatment of rectification, pressure boosting, turbulence elimination, acceleration, heating and the like of the compressed air, takes the working air flow as the power source to drive a turbine to rotate, drives a polishing tool to rotate, and carries out the repair operations of hot blowing softening, grinding and polishing and the like on the coating defects of the automobile body covering part paint surface; according to the characteristics of the paint surface coating defects and the requirements of process parameters, a spraying system can be utilized to carry out paint spraying operation on the paint surface, so that the integrated grinding-spraying operation of common paint surface coating defects is realized, and the common paint surface defect repairing work is completed; in order to improve the repair quality and the environmental protection level, an air exhaust system is additionally arranged and used for enriching and recovering waste gas; the whole set of repairing process has the characteristics of automation, controllability, high efficiency, accuracy, environmental protection and the like, replaces the traditional manual polishing and spraying operation, greatly reduces the requirements of the personnel and the labor technical level for repairing the paint surface, reduces the labor injury level, improves the automation and the intelligence level of the process, improves the consistency and the reliability of product defect repair, and improves the repairing efficiency and the repairing quality level.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of an air duct device according to the present invention;
FIG. 4 is a schematic cross-sectional view of an air duct assembly according to the present invention;
FIG. 5 is a schematic view of the main housing of the present invention;
FIG. 6 is a schematic cross-sectional view of the main housing of the present invention;
FIG. 7 is a schematic top view of the main housing of the present invention;
FIG. 8 is a schematic structural view of a polishing and spraying cabin according to the present invention;
FIG. 9 is a schematic cross-sectional view of the polishing device of the turbine of the present invention;
1. air duct device 2, main shell 3, grinding and polishing spraying bin 4 and turbine grinding and polishing device
5. Air inlet channel 6, flow control valve 7, central shaft 8, turbine 9 and grinding and polishing disk
10. Spray head 11, negative pressure suction head 12, pipeline 13, rectification bin 14 and gas collection bin
15. An accelerating guide plate 16, an air guide hole 17, an air guide small hole 18 and a pressure measuring hole
19. Annular bulge 20, heater 21, rotating shaft 22, impeller 23 and connecting shaft
24. A support grid 25, an upper shaft hole 26, an isolation grid 27, a lower shaft hole 28 and a soft brush. Detailed Description
Please refer to fig. 1-9:
the invention provides an intelligent repair device for defects of a paint surface of an automobile body covering part, which comprises an air duct device 1, a main shell 2, a grinding and polishing spraying bin 3, a turbine grinding and polishing device 4 and a control system, wherein the air duct device 1 is arranged at the upper part of the main shell 2, the grinding and polishing spraying bin 3 is arranged at the lower part of the main shell 2, and the air duct device 1, the main shell 2 and the grinding and polishing spraying bin 3 are communicated with each other; an air inlet channel 5 is arranged at the upper part of the air channel device 1, a flow control valve 6 is arranged on the air inlet channel 5, a flow sensor is arranged in the flow control valve 6, the flow control valve 6 is connected with a control system through a circuit, and the flow control valve 6 is connected with an air compression pump; the turbine grinding and polishing device 4 comprises a central shaft 7, a turbine 8 and a grinding and polishing disc 9, the upper end and the lower end of the central shaft 7 are pivoted in the main shell 2 through a supporting bearing, the turbine 8 is arranged at the lower part of the central shaft 7 and positioned in the main shell 2, the lower end of the central shaft 7 is connected with the grinding and polishing disc 9, and the grinding and polishing disc 9 is positioned in the grinding and polishing spraying bin 3; a spray head 10 and a negative pressure suction head 11 are arranged in the grinding and polishing spraying bin 3, the spray head 10 is connected with a paint spraying pump through a pipeline 12, and the negative pressure suction head 11 is connected with the negative pressure pump through a pipeline 12.
The air duct device 1 comprises a rectifying bin 13, an air collecting bin 14 and an accelerating guide plate 15, wherein the rectifying bin 13 is of a horn-shaped structure, the inner surface of the rectifying bin is of a free curved surface structure, and the curved surface structure is a hydromechanics accurate calculation result and has the functions of eliminating turbulence, stabilizing air flow and improving air flow pressure; the air inlet channel 5 is arranged at the upper part of the rectifying bin 13, and the lower end of the rectifying bin 13 is in threaded connection with the gas collecting bin 14; the gas collecting bin 14 is of a cylindrical structure, the accelerating guide plate 15 is arranged at the bottom of the gas collecting bin 14, and the accelerating guide plate 15 is in threaded connection with the gas collecting bin 14; the middle part of the accelerating guide plate 15 is provided with a tapered air guide hole 16 protruding downwards, and the inner surface of the air guide hole is of a tapered curved surface structure; 12 tapered small air guide holes 17 which are distributed at equal intervals around the circumference direction of a tapered air guide hole 16 are formed in the accelerating air guide plate 15, and the inner surfaces of the tapered small air guide holes 17 are of an oblique tapered structure.
The upper part of the rectifying bin 13 is provided with a pressure measuring hole 18, a pressure sensor is arranged in the pressure measuring hole 18, and the pressure sensor is connected with a control system through a circuit.
The main shell 2 is a hollow cylinder structure, the inner wall of the main shell 2 is provided with a high heat reflectivity coating, the middle part of the inner wall is provided with an annular bulge 19, heaters 20 which are distributed circumferentially at equal intervals are arranged above the annular bulge 19, a flow guide channel which is distributed along the axial direction of the main shell 2 is formed between the adjacent heaters 20, and the heaters 20 are connected with a control system through a circuit; a temperature sensor is also arranged in the main shell 2 and is connected with a control system through a line.
Further, the turbine 8 of the turbine polishing device 4 comprises a rotating shaft 21 and an impeller 22, the rotating shaft 21 and the impeller 22 are of an integrally formed structure, the rotating shaft 21 is in a stepped shaft shape, the impeller 22 is located in the middle of the rotating shaft 21, the upper portion of the rotating shaft 21 is fixedly connected with the central shaft 7 in a rotating friction welding mode, and the lower portion of the rotating shaft is provided with threads; the upper part of the grinding and polishing disc 9 is provided with a connecting shaft 23, and the top end of the connecting shaft 23 is provided with a threaded interface which is in threaded connection with the rotating shaft 21 of the turbine 8.
The upper end of the main shell 2 is provided with a support grid 24 to enhance the overall strength and rigidity of the main shell 2, and the middle of the support grid 24 is provided with an upper shaft hole 25; an isolation grating 26 is arranged between the main shell 2 and the polishing and spraying bin 3, the isolation grating 26 is of a dense-mesh grating structure, the precision mechanical part of the main shell 2 is partially isolated from the polishing and spraying environment, and the additional damage of dust and the like generated in the polishing and spraying operation to the precision mechanical structure is reduced; the middle of the isolation grating 26 is provided with a lower shaft hole 27; the upper end and the lower end of the central shaft 7 of the turbine grinding and polishing device 4 are respectively pivoted in the upper shaft hole 25 and the lower shaft hole 27 through supporting bearings.
The grinding and polishing spraying bin 3 is of a round table type hollow structure, the diameter of the upper half part is smaller than that of the lower half part, soft brushes 28 distributed circumferentially are arranged at the lower edge of the grinding and polishing spraying bin 3, the soft brushes 28 are soft brushes or rubber brushes, the soft brushes 28 are in contact with the paint surface of the automobile body to form flexible protection, the paint surface is prevented from being damaged, meanwhile, the soft brushes 28 have certain paint surface cleaning capacity, and the grinding and polishing repairing effect is improved; the grinding and polishing surface of the grinding and polishing disk 9 is lower than the lower edge of the grinding and polishing spraying bin 3 and higher than the lower edge of the soft brush 28.
The inner wall of the grinding and polishing spraying bin 3 is provided with a plurality of connecting holes, the spray head 10 and the negative pressure suction head 11 are respectively arranged in the connecting holes, and the pipeline 12 is arranged outside the main shell 2 and is connected with the main shell 2 through a fixed buckle; still be equipped with spraying sensor and concentration sensor in the spraying storehouse 3 is thrown to the mill, spraying sensor and concentration sensor establish in the connecting hole, spraying sensor be gas pressure sensor and flow sensor etc. spraying sensor is used for controlling the spraying volume, concentration sensor is used for detecting gas pressure, aerosol concentration etc. that throw the spraying storehouse 3 in, spraying sensor and concentration sensor pass through the circuit and link to each other with control system, control system adjusts the output of paint spraying pump and the suction power of negative pressure pump according to data.
Further, the air duct device 1, the main shell 2 and the grinding and polishing spraying bin 3 are all in threaded connection.
The working principle of the invention is as follows:
the flow control valve 6 of the device is connected with an air compression pump, and the lower part of the grinding and polishing spraying bin 3 of the device is buckled at the defect of the painted surface to be ground, polished and sprayed, so that the grinding and polishing disc 9 is in contact with the painted surface.
The air compression pump is started to convey pressure airflow into the device, the airflow enters the rectification bin 13 from the air inlet channel 5 of the air channel device 1, the rectification bin 13 smoothes the airflow according to the basic principle of hydrodynamics, the flow speed of the pressure airflow is reduced, the pressure is improved, the airflow is enriched and stabilized in the air collection bin 14 after being rectified by the rectification bin 13, some turbulence in the airflow is eliminated, the stabilized airflow is accelerated to be led out through the tapered air guide holes 16 on the accelerating guide plate 15 and flows into the main shell 2, and the tapered air guide holes 17 play an auxiliary role, so that the leading-out efficiency of the airflow is improved. The volume of the gas collection chamber 14 and the relative position of the acceleration guide plate 15 in the air duct device 1 can be changed and adjusted according to different requirements.
The pressure sensor at the upper part of the rectifying bin 13 monitors the gas pressure in the air duct device 1, transmits a pressure signal to the control system in real time, and controls the opening of the flow control valve 6 by the control system so as to control the gas flow entering the device.
The airflow enters the main shell 2 after turbulence elimination, flow stabilization and pressurization of the air duct device 1, the heater 20 in the main shell 2 is electrified to heat the airflow, the heated airflow flows downwards along a flow guide channel formed between the heaters 20, the high-heat-reflectivity coating is used for reducing diffusion of heat radiation, the temperature in the cavity is kept, and the gas heating efficiency is improved; the temperature sensor monitors the temperature of the heater 20 and the temperature of the gas flow in real time and transmits data to the control system, and the control system adjusts the electric power applied to the heater 20 to achieve effective control of the gas temperature.
The heated air flow continuously flows downwards, when the air flow flows through the turbine grinding and polishing device 4, the high-temperature and high-pressure air flow drives the turbine 8 of the turbine grinding and polishing device 4 to rotate, the turbine 8 drives the central shaft 7 to rotate in the supporting bearing, and then the grinding and polishing disc 9 at the lower end of the central shaft 7 is driven to rotate, so that the grinding and polishing operation on the painted surface is realized; the high temperature air flow has the effect of simultaneously increasing the rotational speed of the turbine 8 and softening the paint surface.
When grinding and polishing operation is carried out, the negative pressure pump is started, the negative pressure suction head 11 in the grinding and polishing spraying bin 3 sucks out air flow flowing into the grinding and polishing spraying bin 3 and chip dust generated by grinding and polishing together, so that the environmental cleanliness of the grinding and polishing spraying bin 3 is ensured, the damage to the paint surface caused by the attachment of waste on the operation surface is avoided, and the grinding and spraying effect is improved.
And starting a paint spraying pump after grinding and polishing, spraying and repairing the ground and polished paint surface, and simultaneously cleaning and sucking wastes such as dust, aerosol and the like generated in the spraying operation by using the negative pressure suction head 11 until the repairing is finished.
Claims (9)
1. The utility model provides an automobile body panel lacquer painting defect intelligent repair device which characterized in that: the turbine grinding and polishing device comprises an air duct device, a main shell, a grinding and polishing spraying bin, a turbine grinding and polishing device and a control system, wherein the air duct device is arranged at the upper part of the main shell; the upper part of the air duct device is provided with an air inlet channel, the air inlet channel is provided with a flow control valve, and the flow control valve is connected with a control system through a circuit; the turbine grinding and polishing device comprises a central shaft, a turbine and a grinding and polishing disc, the upper end and the lower end of the central shaft are pivoted in the main shell through a supporting shaft bearing, the turbine is arranged at the lower part of the central shaft and positioned in the main shell, the lower end of the central shaft is connected with the grinding and polishing disc, and the grinding and polishing disc is positioned in a grinding and polishing spraying bin; and a sprayer and a negative pressure suction head are arranged in the grinding and polishing spraying bin, the sprayer is connected with a paint spraying pump through a pipeline, and the negative pressure suction head is connected with a negative pressure pump through a pipeline.
2. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 1, characterized in that: the air duct device comprises a rectifying bin, a gas collecting bin and an accelerating guide plate, wherein the rectifying bin is of a horn-shaped structure, an air inlet channel is arranged at the upper part of the rectifying bin, and the lower end of the rectifying bin is in threaded connection with the gas collecting bin; the gas collection bin is of a cylindrical structure, the acceleration guide plate is arranged at the bottom of the gas collection bin, and the acceleration guide plate is in threaded connection with the gas collection bin; the middle part of the accelerating guide plate is provided with a tapered air guide hole protruding downwards, and the accelerating guide plate is provided with a plurality of tapered air guide holes distributed at equal intervals around the circumferential direction of the tapered air guide hole.
3. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 2, characterized in that: the upper part of the rectifying bin is provided with a pressure measuring hole, a pressure sensor is arranged in the pressure measuring hole, and the pressure sensor is connected with a control system through a circuit.
4. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 1, characterized in that: the main shell is of a hollow cylindrical structure, a high-heat-reflectivity coating is arranged on the inner wall of the main shell, an annular bulge is arranged in the middle of the inner wall, heaters which are distributed circumferentially at equal intervals are arranged above the annular bulge, a flow guide channel is formed between every two adjacent heaters, and the heaters are connected with a control system through a circuit; a temperature sensor is also arranged in the main shell and is connected with a control system through a circuit.
5. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 1, characterized in that: the turbine of the turbine grinding and polishing device comprises a rotating shaft and an impeller, the rotating shaft and the impeller are of an integrally formed structure, the rotating shaft is in a stepped shaft shape, the impeller is positioned in the middle of the rotating shaft, the upper part of the rotating shaft is fixedly connected with a central shaft, and the lower part of the rotating shaft is provided with threads; the upper part of the grinding and polishing disc is provided with a connecting shaft, and the top end of the connecting shaft is provided with a threaded connector which is in threaded connection with a rotating shaft of the turbine.
6. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 1, characterized in that: the upper end of the main shell is provided with a support grid, and the middle of the support grid is provided with an upper shaft hole; an isolation grating is arranged between the main shell and the grinding, polishing and spraying bin, and a lower shaft hole is arranged in the middle of the isolation grating; the upper end and the lower end of a central shaft of the turbine grinding and polishing device are respectively pivoted in the upper shaft hole and the lower shaft hole through supporting bearings.
7. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 1, characterized in that: the grinding and polishing spraying bin is of a round table type hollow structure, soft brushes distributed in the circumferential direction are arranged on the lower edge of the grinding and polishing spraying bin, and the grinding and polishing surface of the grinding and polishing disc is lower than the lower edge of the grinding and polishing spraying bin and higher than the lower edge of the soft brushes.
8. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 1, characterized in that: the inner wall of the grinding and polishing spraying bin is provided with a connecting hole, the spray head and the negative pressure suction head are respectively arranged in the connecting hole, and the pipeline is arranged outside the main shell and is connected with the main shell through a fixed buckle; and a spraying sensor and a concentration sensor are also arranged in the grinding and polishing spraying bin and are connected with a control system through lines.
9. The intelligent repair device for the paint surface defect of the automobile body covering part according to claim 1, characterized in that: the air duct device, the main shell and the grinding and polishing spraying bin are all in threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110922717.1A CN113601325B (en) | 2021-08-12 | 2021-08-12 | Intelligent repair device for defects of paint surface of automobile body covering part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110922717.1A CN113601325B (en) | 2021-08-12 | 2021-08-12 | Intelligent repair device for defects of paint surface of automobile body covering part |
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| CN113601325A CN113601325A (en) | 2021-11-05 |
| CN113601325B true CN113601325B (en) | 2022-05-24 |
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| JP2003159563A (en) * | 2001-11-26 | 2003-06-03 | Kamigaki Takeo | Method for repairing coating surface of vehicle |
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| CN104772662B (en) * | 2015-04-09 | 2017-04-12 | 沈祝宾 | Dry grinding device and dry grinding method for repairing paint surface of automobile |
| CN206123411U (en) * | 2016-10-20 | 2017-04-26 | 张喜民 | Small -diameter pipelines inner wall burnishing and polishing flush coater |
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| CN206912833U (en) * | 2017-05-27 | 2018-01-23 | 颍上县双盛金属制品有限公司 | A kind of rectangle pipe port grinding apparatus |
| CN110479559A (en) * | 2019-09-24 | 2019-11-22 | 徐州蓝湖信息科技有限公司 | Single-pipe tower lacquer painting obturator |
| CN113042253A (en) * | 2021-03-06 | 2021-06-29 | 东莞市众金家具有限公司 | One-time molding process for polishing and paint spraying |
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| CN113601325A (en) | 2021-11-05 |
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