A pretreatment device for electrophoretic coating

Abstract

The present application relates to a pretreatment device for electrophoretic coating, which includes an oil removal device for removing dirt from the surface of a workpiece, a grinding device for grinding the workpiece, a conveying assembly for conveying the workpiece, and a pretreatment controller; the oil removal assembly includes a brushing assembly, an immersion assembly for immersing the workpiece, and a drying assembly for drying the workpiece, the brushing assembly includes an oil removal waterway, and a spray component and a brushing component arranged in the oil removal waterway, the spray component includes a plurality of spray pipes and a plurality of spray nozzles installed on the spray pipes; the brush assembly includes a plurality of brush rods and a driving turntable for driving the brush rods to rotate, the plurality of brush rods are arranged along the circumference of the driving turntable, the plurality of brush rods are provided with brush nozzles, and the brush nozzles are provided with bristles and a plurality of water spray holes; the plurality of spray pipes and the plurality of brush nozzles are connected to a deoiling water source. The present application has the effect of effectively improving the quality of removing dirt from the surface of the workpiece and improving the coating quality.

Description

Technical Field

[0001] The present application relates to the field of electrophoretic coating, and in particular to a pretreatment device for electrophoretic coating. Background Art

[0002] Before electrophoretic coating, the workpiece to be coated must be pre-treated on the surface. First, various dirt, such as oil, rust, oxide scale, welding slag, metal chips, etc., must be removed, followed by chemical treatment phosphating and passivation treatment. If the dirt is not cleaned up and brought into the electrophoretic tank, it will cause shrinkage holes, pinholes and other disadvantages. If the pre-treatment of electrophoretic coating is not in place, the dirt on the workpiece will be brought into the electrophoretic tank, which will pollute the tank liquid and affect the coating quality.

[0003] The Chinese patent with the announcement number CN107904648B discloses a pretreatment device for electrophoretic spray painting of mechanical parts, including a shell 1, the inner cavity of the shell 1 is hollow, the bottom wall of the shell 1 is connected with motor 1, motor 2 and motor 3 in sequence in the horizontal direction, one end of the motor 1, motor 2 and motor 3 is connected with shaft 1, shaft 2 and shaft 3 respectively, the top of the shell 1 is connected with conveyor belt 1, controller, frame, water tank, cylinder, support rod, booster pump, shell 2, electrophoretic tank and conveyor belt 2 in sequence in the horizontal direction, the end of the conveyor belt 1 away from the shell 1 is fixedly connected with a storage plate, the storage plate is located at the top of the water tank, and the side wall of the water tank away from the conveyor belt 1 is connected with a water pump and a water pipe in sequence in the vertical direction. This application realizes the pretreatment of electrophoretic parts and the post-electrophoresis treatment function. This application uses a water spray pipe to spray water on mechanical parts and components. However, when faced with workpieces with more complex structures, spraying alone often cannot effectively remove dirt on the surface of the workpiece, which can easily affect the quality of subsequent painting.

[0004] With respect to the above-mentioned related technologies, the existing pretreatment equipment for electrophoretic coating often cannot effectively remove the dirt on the surface of the workpiece when facing the workpiece with a relatively complex structure, which easily affects the subsequent coating quality. Summary of the invention

[0005] In order to solve the problem that the existing pretreatment equipment for electrophoretic coating often cannot effectively remove dirt on the surface of workpieces with more complex structures, which easily affects the quality of subsequent coating, the present application provides a pretreatment equipment for electrophoretic coating.

[0006] In the first aspect, the present application provides a pretreatment device for electrophoretic coating, which adopts the following technical solution:

[0007] A pretreatment device for electrophoretic coating, comprising a degreasing device for removing dirt from the surface of a workpiece, a grinding device for grinding the workpiece, a conveying assembly for conveying the workpiece and a pretreatment controller, wherein the degreasing device, the grinding device and the conveying assembly are all connected to the pretreatment controller; the degreasing device comprises a brushing assembly, an immersion assembly for immersing the workpiece and a drying assembly for drying the workpiece, the brushing assembly comprises a degreasing waterway and a spray component and a brushing component arranged in the degreasing waterway, the spray component comprises a plurality of spray pipes and a plurality of spray nozzles installed on the spray pipes, and the plurality of spray pipes are evenly distributed on both side walls of the degreasing waterway in the width direction; the brushing component comprises a plurality of brushing rods and a driving turntable for driving the brushing rods to rotate, the plurality of brushing rods are arranged along the circumference of the driving turntable, the plurality of brushing rods are provided with brushing nozzles, and the brushing nozzles are provided with bristles and a plurality of water spray holes; the plurality of spray pipes and the plurality of brushing nozzles are commonly connected to a degreasing water source.

[0008] Preferably, a plurality of the water spray holes are evenly distributed on the scrubbing nozzle, a plurality of scrubbing holes are arranged on the scrubbing nozzle, and a plurality of the scrubbing holes are all connected with a scrubbing hose.

[0009] Preferably, a plurality of the scrubbing hoses are provided with a plurality of spray holes, and the plurality of spray holes are arranged at one end of the scrubbing hose away from the scrubbing nozzle.

[0010] Preferably, a plurality of sealing sheets are arranged on the inner side walls of the plurality of liquid spray holes along their circumferential direction, and the plurality of sealing sheets surround the liquid spray holes to form a circle and seal the liquid spray holes.

[0011] Preferably, the conveying assembly includes a conveying track and a conveying trolley sliding on the conveying track for conveying workpieces, and the conveying trolley is equipped with a lifting drive component for driving the workpiece to lift and lower, and the output end of the lifting drive component is connected to a rotating drive component for driving the workpiece to rotate, and the output end of the rotating drive component is connected to a hanger for hanging the workpiece.

[0012] Preferably, the immersion assembly includes an immersion tank and a stirring component, the immersion tank includes an oil removal tank and a water washing tank arranged in sequence, and the oil removal tank is connected to the oil removal water source; the stirring component includes a stirring motor and a plurality of stirring impellers, and the plurality of stirring impellers are distributed in the oil removal tank and the water washing tank, and the stirring motor is transmission-connected to the plurality of stirring impellers.

[0013] Preferably, the degreasing tank and the water washing tank are both provided with electric heating wires for heating and controlling the temperature of the liquid, temperature sensors for detecting the temperature of the liquid, and water level sensors for detecting the water level.

[0014] Preferably, the drying component comprises a drying bin and a drying air duct arranged on a side wall of the drying bin, a plurality of drying air nozzles are installed on the drying air duct, and the drying air duct is connected to a hot air source.

[0015] Preferably, the polishing device includes a shot blasting machine body, a barcode scanner for identifying the workpiece, and a fixed shot blasting machine installed in the shot blasting machine body for shot blasting the workpiece. A miniature six-axis manipulator is arranged in the shot blasting machine body, and a fine shot blasting machine for fine polishing the workpiece is installed at the output end of the miniature six-axis manipulator.

[0016] Preferably, the conveying assembly also includes a grinding conveying member for conveying the workpiece to the shot blasting machine body.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. Through the setting of the degreasing device, a brushing nozzle is additionally provided on the basis of the spray nozzle. When the workpiece is sent into the degreasing waterway by the conveying assembly, the spray nozzle sprays and degreases the workpiece, and at the same time, the turntable is driven to drive the brushing rod and the brushing nozzle to rotate, and the workpiece is flushed through the water spray hole and the brush bristles, which is helpful to remove dirt and clean the dead corners on the workpiece that are difficult to spray, so as to effectively improve the quality of removing dirt on the surface of the workpiece and improve the coating quality;

[0019] 2. Through the setting of the closing piece, the protruding part of the workpiece squeezes and blocks the scrubbing hose during the scrubbing process, causing the scrubbing hose to bend and deform. At this time, the closing piece in the water spray hole is squeezed and staggered to form a water outlet channel, so that the liquid in the scrubbing hose rushes to the protruding folds of the workpiece at a higher water speed through the water outlet channel, and the dead corners of the workpiece are cleaned, so as to effectively improve the quality of removing dirt on the surface of the workpiece and improve the coating quality;

[0020] 3. By performing image acquisition verification on the workpiece and adjusting the degreasing and shot blasting parameters based on the negative feedback of the verification results, it helps to improve the quality and efficiency of workpiece pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a system block diagram of a pretreatment device for electrophoretic coating in an embodiment of the present application;

[0022] Figure 2 It is a structural schematic diagram of a pretreatment device for electrophoretic coating in an embodiment of the present application;

[0023] Figure 3 It is a schematic diagram of the structure of the spray component in the embodiment of the present application;

[0024] Figure 4 It is a structural schematic diagram of the scrubbing component in the embodiment of the present application;

[0025] Figure 5 is a schematic diagram of the structure of the scrubbing assembly in an embodiment of the present application;

[0026] Figure 6 is a schematic diagram of the structure of the scrubbing nozzle in the embodiment of the present application;

[0027] Figure 7 is a schematic diagram of the structure of the scrubbing hose in an embodiment of the present application;

[0028] Figure 8 is a cross-sectional schematic diagram of an immersion tank in an embodiment of the present application;

[0029] Fig. 9 is a schematic diagram of the structure of a drying component in an embodiment of the present application;

[0030] Fig.10 is a flow chart of a method for preprocessing a workpiece in an embodiment of the present application;

[0031] Fig.11 It is a flow chart of the method for performing visual verification on workpiece preprocessing in an embodiment of the present application.

[0032] Description of the accompanying drawings: 1. Degreasing device; 2. Grinding device; 21. Shot blasting machine body; 22. Fixed shot blasting machine; 23. Micro six-axis manipulator; 24. Fine shot blasting machine; 25. Barcode scanner; 3. Conveying assembly; 31. Conveying track; 32. Conveying crane; 33. Lifting drive member; 34. Rotating drive member; 35. Hanging member; 36. Grinding conveying member; 4. Pretreatment controller; 5. Brushing assembly; 51. Degreasing water channel; 52. Spraying member; 521. Spraying pipe; 522. Spraying nozzle; 53. Brushing member; 531. Brushing rod; 532 , driving turntable; 533, brushing nozzle; 534, bristles; 535, water spray hole; 536, brushing hose; 537, liquid spray hole; 538, closing piece; 6, immersion component; 61, immersion tank; 611, degreasing tank; 612, water washing tank; 62, stirring component; 621, stirring motor; 622, stirring impeller; 63, electric heating wire; 64, temperature sensor; 65, water level sensor; 7, drying component; 71, drying chamber; 72, drying air duct; 73, drying air nozzle; 74, hot air source; 8, degreasing water source; 9, video acquisition equipment. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 10 This application is described in further detail.

[0034] The present application embodiment discloses a pretreatment device for electrophoretic coating. Figure 1-Figure 9, a pretreatment equipment for electrophoretic coating, comprising a degreasing device 1 for removing dirt from the surface of a workpiece, a grinding device 2 for grinding the workpiece, a conveying assembly 3 for conveying the workpiece, and a pretreatment controller 4. The degreasing device 1, the grinding device 2, and the conveying assembly 3 are all connected to the pretreatment controller 4. The degreasing device 1 comprises a brushing assembly 5, an immersion assembly 6 for immersing the workpiece, and a drying assembly 7 for drying the workpiece. The brushing assembly 5 comprises a degreasing waterway 51, and a spraying component 52 and a brushing component 53 arranged in the degreasing waterway 51. The spraying component 52 comprises a plurality of spray pipes 521 and a plurality of spray nozzles 522 installed on the spray pipes 521. The plurality of spray pipes 521 are evenly distributed on the two side walls of the degreasing waterway 51 in the width direction. The brushing component 53 comprises a plurality of brushing rods 531 and a driving turntable 532 for driving the brushing rods 531 to rotate. The driving turntable 532 can be an electric turntable. In order to facilitate leakage, a hollow structure can be used, and a water leakage drainage structure can be set. Multiple scrubbing rods 531 are arranged along the circumference of the driving turntable 532, and multiple scrubbing rods 531 are provided with scrubbing nozzles 533. In addition, according to actual needs, the scrubbing rods 531 can be replaced with cylinders or electric cylinders to meet the pretreatment requirements of large-volume workpieces. The scrubbing nozzles 533 are provided with bristles 534 and a plurality of water spray holes 535. The multiple spray pipes 521 and the multiple scrubbing nozzles 533 are connected to a degreasing water source 8. Through the setting of the degreasing device 1, a brushing nozzle 533 is additionally provided on the basis of the spraying nozzle 522. When the workpiece is sent into the degreasing waterway 51 by the conveying component 3, the spraying nozzle 522 sprays and removes oil on the workpiece, and at the same time drives the turntable 532 to drive the brushing rod 531 and the brushing nozzle to rotate, and flushes the workpiece through the water spray hole 535 and the brush bristles 534, which helps to remove dirt and clean the dead corners of the workpiece that are difficult to spray, thereby effectively improving the quality of removing dirt from the workpiece surface and improving the coating quality.

[0035] Reference Figure 5 and Figure 6 , several water spray holes 535 are evenly distributed on the scrubbing nozzle 533. Several scrubbing holes are arranged on the scrubbing nozzle 533, and several of the scrubbing holes are connected to a scrubbing hose 536. Through the arrangement of the scrubbing hose 536, when the driving turntable 532 drives the scrubbing nozzle to rotate, the scrubbing hose 536 extends into the corners of the workpiece along with the bristles 534 to spray liquid for decontamination, which helps to further improve the decontamination efficiency and quality of the workpiece. Several of the scrubbing hoses 536 are provided with multiple spray holes 537, and the multiple spray holes 537 are arranged at one end of the scrubbing hose 536 away from the scrubbing nozzle 533. Through the arrangement of the spray holes 537, after the scrubbing hose 536 contacts the workpiece, multi-angle and all-round water spraying for decontamination is realized, further improving the decontamination quality.

[0036] Reference Figure 7, multiple sealing pieces 538 are arranged on the inner side walls of the multiple liquid spraying holes 537 along their circumference, and the multiple sealing pieces 538 surround the liquid spraying holes 537 to form a circle. Through the arrangement of the sealing pieces 538, when the driving turntable 532 drives the scrubbing nozzle to rotate, the scrubbing hose 536 contacts the workpiece, and scrubs the workpiece circumferentially as the driving turntable 532 rotates; at the same time, during the scrubbing process, the protruding part of the workpiece squeezes and blocks the scrubbing hose 536, causing the scrubbing hose 536 to bend and deform. At this time, the sealing pieces 538 in the water spraying holes 535 are squeezed and staggered to form a water outlet channel, so that the liquid in the scrubbing hose 536 rushes to the protruding folds of the workpiece at a higher water speed through the water outlet channel, showing that the dead corners of the workpiece are cleaned, achieving the effect of effectively improving the quality of removing dirt on the surface of the workpiece and improving the coating quality.

[0037] Reference Figure 1-Figure 9 The immersion component 6 includes an immersion tank 61 and a stirring component 62. The immersion tank 61 includes a degreasing tank 611 and a water washing tank 612 which are arranged in sequence. The degreasing tank 611 is connected to the degreasing water source 8. The stirring component 62 includes a stirring motor 621 and a plurality of stirring impellers 622. The plurality of stirring impellers are distributed in the degreasing tank and the water washing tank. The stirring motor 621 is connected to the plurality of stirring impellers 622 in a transmission manner. By setting the immersion tank 61 and the stirring component 62, the workpiece flushed and washed by the scrubbing component 5 is immersed in water for washing, which helps to remove the dirt residue floating on the surface of the workpiece after scrubbing, and helps to further improve the quality of the workpiece degreasing and water washing, so as to effectively improve the quality of removing the dirt on the surface of the workpiece and improve the coating quality.

[0038] Reference Figure 1 and Figure 8 The degreasing pool 611 and the water washing pool 612 are both provided with an electric heating wire 63 for heating and controlling the temperature of the liquid, a temperature sensor 64 for detecting the temperature of the liquid, and a water level sensor 65 for detecting the water level. The electric heating wire 63, the temperature sensor 64, and the water level sensor 65 are helpful for controlling the temperature and water level of the liquid in the immersion pool 61, and are helpful for improving the quality of workpiece degreasing and water washing.

[0039] Reference Fig. 9 The drying assembly 7 includes a drying chamber 71 and a drying duct 72 disposed on the side wall of the drying chamber 71. The drying duct 72 is provided with a plurality of drying nozzles 73. The drying duct 72 is connected to a hot air source 74. The arrangement of the drying duct 72 helps to efficiently dry the workpiece after decontamination, facilitates subsequent shot blasting, and effectively improves the workpiece pretreatment efficiency.

[0040] Reference Figure 1 and Figure 2The conveying assembly 3 includes a conveying track 31 and a conveying carriage 32 that slides on the conveying track 31 for conveying workpieces. The conveying carriage 32 is equipped with a lifting drive 33 for driving the workpiece to rise and fall. The lifting drive 33 can be a lifting device such as an electric hoist, a lifting cylinder, or a lifting electric cylinder. The output end of the lifting drive 33 is connected to a rotating drive 34 for driving the workpiece to rotate. The rotating drive 34 can be an electric rotating device such as a motor and an electric turntable. The output end of the rotating drive 34 is connected to a hanger 35 for hanging the workpiece. Through the arrangement of the lifting drive 33 and the rotating drive 34, the conveying carriage 32 slides on the conveying track 31 to deliver the workpiece into the degreasing waterway 51, and the spray nozzle 522 and the scrubbing nozzle rinse and scrub the workpiece, thereby effectively improving the quality of removing dirt from the surface of the workpiece and improving the coating quality.

[0041] Reference Figure 1 The grinding device 2 includes a shot blasting machine body 21, a barcode scanner 25 for identifying workpieces, and a fixed shot blasting machine 22 installed in the shot blasting machine body 21 for performing shot blasting on the workpiece. A micro six-axis manipulator 23 is arranged in the shot blasting machine body 21, and a fine shot blasting machine 24 for fine grinding of the workpiece is installed at the output end of the micro six-axis manipulator 23. Through the setting of the micro six-axis manipulator 23 and the fine shot blasting machine 24, the pre-processing controller 4 obtains the barcode information of the workpiece through the barcode scanner, obtains the shot blasting scheme after verification, and controls the micro six-axis manipulator 23 based on the shot blasting scheme to drive the fine shot blasting machine 24 to perform fine shot blasting on the workpiece, which helps to improve the shot blasting quality of the workpiece, improve the rust removal and passivation quality of the workpiece, and achieve the effect of improving the coating quality.

[0042] Reference Figure 1 The conveying assembly 3 also includes a grinding conveying member 36 for conveying the workpiece to the shot blasting machine body 21. The grinding conveying member 36 can be a fully automatic manipulator or other semi-automatic conveying equipment that requires manual assistance to convey the workpiece to the shot blasting machine body 21.

[0043] Reference Figure 1 The pre-processing controller 4 is also connected to a video acquisition device 9 for video verification of the workpiece. The video acquisition device is installed at the discharge port of the drying component 7 and the discharge port of the shot blasting equipment, and is used to collect the first image information of the workpiece after drying and the second image information of the workpiece after grinding.

[0044] Reference Fig.10 The pretreatment controller 4 controls the degreasing device 1, the grinding device 2 and the conveying assembly 3 to pretreat the workpiece, which specifically includes the following steps:

[0045] S1, workpiece hanging and conveying: the workpiece is hung on the hanging part 35, and the pre-processing controller 4 controls the conveying crane 32 to drive the workpiece into the oil removal waterway 51;

[0046] S2. Spray and rinse the workpiece: the pre-processing controller 4 controls the lifting drive 33 to lower the workpiece based on the workpiece model, and starts the water source to spray and rinse the workpiece through the spray nozzle 522;

[0047] S3, brushing the workpiece: the pre-processing controller 4 controls the driving turntable 532 to start, driving the brushing nozzle to rotate to brush the workpiece;

[0048] S4, immersing and degreasing the workpiece: After the washing is completed, the pre-processing controller 4 controls the conveying crane 32 to lift the workpiece and convey it to the top of the degreasing tank 611, lowers the workpiece until the workpiece is immersed in the degreasing tank 611, and starts the rotating drive 34 to drive the workpiece to slowly rotate in the degreasing tank 611 for a preset time;

[0049] S5, immersing the workpiece in water for washing: the pre-processing controller 4 controls the conveying crane 32 to lift the workpiece and convey it to the top of the water washing tank 612, lowers the workpiece until the workpiece is immersed in the water washing tank, and starts the rotating driving member 34 to drive the workpiece to rotate slowly in the water washing tank 612 for a preset time;

[0050] S6, drying the workpiece: the pre-processing controller 4 controls the conveying crane 32 to lift the workpiece and convey it to the drying bin 71, and starts the hot air source 74 to dry the workpiece;

[0051] S7, grinding the workpiece: the pre-processing controller 4 controls the conveying crane 32 to lift the workpiece and transport it to the grinding device 2, and the grinding conveying member 36 sends the workpiece into the shot blasting machine body 21. The pre-processing controller 4 obtains the workpiece barcode information through the barcode scanner, obtains the shot blasting scheme based on the workpiece barcode information, and the pre-processing controller 4 controls the fixed shot blasting machine 22 to perform shot blasting and grinding on the workpiece based on the shot blasting scheme;

[0052] S8, fine shot blasting of the workpiece: the pre-processing controller 4 controls the micro six-axis manipulator 23 to drive the fine shot blasting machine 24 to fine shot blast the workpiece wrinkle dead corner based on the shot blasting scheme;

[0053] S9. Visual verification of workpiece pretreatment: The pretreatment controller 4 obtains the first image information of the workpiece after drying and the first image information of the workpiece after polishing in real time, and visually verifies the workpiece pretreatment based on the first image information and the first image information. By driving the turntable 532 to drive the washing rod 531 and the washing nozzle to rotate, the workpiece is finely brushed while spraying, which helps to remove dirt from the dead corners of the workpiece folds, and effectively improves the quality of removing dirt from the workpiece surface and improving the coating quality; in addition, by controlling the micro six-axis manipulator 23 to drive the fine shot blasting machine 24 to perform fine shot blasting on the workpiece, it helps to improve the quality of shot blasting and polishing of the workpiece, improve the quality of rust removal and passivation of the workpiece, and achieve the effect of improving the coating quality.

[0054] Reference Fig.11 In the above step S9, the pre-processing controller 4 obtains the first image information of the workpiece after drying and the second image information of the workpiece after grinding in real time, and performs visual verification of the workpiece pre-processing based on the first image information and the second image information, which specifically includes the following steps:

[0055] A1. Collecting workpiece image information: The preprocessing controller 4 obtains the first image information of the workpiece after drying and the second image information of the workpiece after polishing in real time through the video acquisition device 9;

[0056] A2. Verify the workpiece decontamination: The pre-processing controller 4 performs image verification on the workpiece decontamination based on the first image information to determine whether there is contaminant on the workpiece. If there is contaminant, an error message is generated and sent to the management personnel, and the corresponding degreasing parameters are adjusted based on the negative feedback of the contaminant position.

[0057] The existing algorithm for identifying dirt based on images will not be described here in detail. However, in the process of image analysis, the image of the blind spot of the workpiece is obtained based on the workpiece model and then enlarged and analyzed to ensure the accuracy of image verification. In addition, based on the location of the dirt, the oil removal parameters associated with the dirt are determined by comparing the dirt reference table with preset values, where the dirt reference table is the preset value of the management personnel, and then the corresponding oil removal parameters are adjusted by negative feedback.

[0058] A3. Verify the grinding of the workpiece: The pre-processing controller 4 verifies the grinding of the workpiece based on the second image information to determine whether there is rust on the workpiece. If there is rust, an error message is generated and sent to the management personnel, and the corresponding shot blasting parameters are adjusted based on the rust position through negative feedback. By performing image acquisition verification on the workpiece and adjusting the degreasing and shot blasting parameters based on the negative feedback of the verification results, it is helpful to improve the quality and efficiency of workpiece pre-processing.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A pretreatment device for electrophoretic coating, characterized in that: The invention comprises an oil removal device (1) for removing dirt from the surface of a workpiece, a grinding device (2) for grinding the workpiece, a conveying assembly (3) for conveying the workpiece, and a pretreatment controller (4); the oil removal device (1), the grinding device (2), and the conveying assembly (3) are all connected to the pretreatment controller (4); the oil removal device (1) comprises a brushing assembly (5), an immersion assembly (6) for immersing the workpiece, and a drying assembly (7) for drying the workpiece; the brushing assembly (5) comprises an oil removal waterway (51), and a spraying component (52) and a brushing component (53) arranged in the oil removal waterway (51); the spraying component (52) comprises a plurality of spray pipes (521) and a plurality of spraying components (53) installed in the waterway; The spray nozzle (522) on the spray pipe (521) is evenly distributed on the two side walls of the degreasing water channel (51) in the width direction; the scrubbing component (53) comprises a plurality of scrubbing rods (531) and a driving turntable (532) for driving the scrubbing rods (531) to rotate; the plurality of scrubbing rods (531) are arranged along the circumference of the driving turntable (532); the plurality of scrubbing rods (531) are all provided with a scrubbing nozzle (533); the scrubbing nozzle (533) is provided with bristles (534) and a plurality of water spray holes (535); the plurality of spray pipes (521) and the plurality of scrubbing nozzles (533) are commonly connected to a degreasing water source (8); A plurality of water spray holes (535) are evenly distributed on the scrubbing nozzle (533), a plurality of scrubbing holes are arranged on the scrubbing nozzle (533), and a plurality of scrubbing holes are connected to a scrubbing hose (536); A plurality of the scrubbing hoses (536) are each provided with a plurality of liquid spray holes (537), and the plurality of liquid spray holes (537) are each arranged at one end of the scrubbing hose (536) away from the scrubbing nozzle (533); A plurality of sealing sheets (538) are arranged on the inner side walls of the plurality of liquid spray holes (537) along their circumferential direction, and the plurality of sealing sheets (538) surround the liquid spray holes (537) in a circle and seal the liquid spray holes (537); The conveying assembly (3) comprises a conveying track (31) and a conveying carriage (32) sliding on the conveying track (31) for conveying workpieces, the conveying carriage (32) is provided with a lifting driving member (33) for driving the workpiece to be lifted and lowered, the output end of the lifting driving member (33) is connected to a rotating driving member (34) for driving the workpiece to rotate, and the output end of the rotating driving member (34) is connected to a hanging member (35) for hanging the workpiece; The immersion assembly (6) comprises an immersion tank (61) and a stirring component (62), wherein the immersion tank (61) comprises a degreasing tank (611) and a water washing tank (612) which are arranged in sequence, and the degreasing tank (611) is connected to a degreasing water source (8); the stirring component (62) comprises a stirring motor (621) and a plurality of stirring impellers (622), wherein the plurality of stirring impellers (622) are distributed in the degreasing tank (611) and the water washing tank (612), and the stirring motor (621) is in driving connection with the plurality of stirring impellers (622); The drying assembly (7) comprises a drying chamber (71) and a drying air duct (72) arranged on the side wall of the drying chamber (71), a plurality of drying air nozzles (73) are installed on the drying air duct (72), and the drying air duct (72) is connected to a hot air source (74); The grinding device (2) comprises a shot blasting machine body (21), a code scanner (25) for identifying a workpiece, and a fixed shot blasting machine (22) installed in the shot blasting machine body (21) for performing shot blasting on the workpiece, wherein a micro six-axis manipulator (23) is arranged in the shot blasting machine body (21), and a fine shot blasting machine (24) for fine grinding the workpiece is installed at the output end of the micro six-axis manipulator (23); The conveying assembly (3) also includes a grinding conveying member (36) for conveying the workpiece to the shot blasting machine body (21); The pretreatment controller (4) controls the degreasing device (1), the grinding device (2) and the conveying component (3) to pretreat the workpiece, which specifically includes the following steps: S1, workpiece hanging and conveying: the workpiece is hung on the hanging member (35), and the pre-processing controller (4) controls the conveying crane (32) to drive the workpiece into the oil removal waterway (51); S2. Spraying and washing the workpiece: the pre-processing controller (4) controls the lifting drive (33) to drive the workpiece to descend based on the workpiece model, and starts the water source to spray and wash the workpiece through the spray nozzle (522); S3, brushing the workpiece: the pre-processing controller (4) controls the driving turntable (532) to start, driving the brushing nozzle to rotate to brush the workpiece; S4, immersing and degreasing the workpiece: after the washing is completed, the pre-processing controller (4) controls the conveying crane (32) to lift the workpiece and convey it to the top of the degreasing tank (611), lowers the workpiece until the workpiece is immersed in the degreasing tank (611), and starts the rotating driving member (34) to drive the workpiece to slowly rotate in the degreasing tank (611) for a preset time; S5, immersing the workpiece in water for washing: the pre-processing controller (4) controls the conveying crane (32) to lift the workpiece and convey it to the top of the water washing tank (612), lowers the workpiece until the workpiece is immersed in the water washing tank, and starts the rotating driving member (34) to drive the workpiece to slowly rotate in the water washing tank (612) for a preset time; S6, drying the workpiece: the pre-processing controller (4) controls the conveying crane (32) to lift the workpiece and convey it to the drying bin (71), and starts the hot air source (74) to dry the workpiece; S7, grinding the workpiece: the preprocessing controller (4) controls the conveying crane (32) to lift the workpiece and convey it to the grinding device (2); the grinding conveying member (36) conveys the workpiece into the shot blasting machine body (21); the preprocessing controller (4) obtains the workpiece barcode information through the barcode scanner (25), obtains the shot blasting scheme based on the workpiece barcode information, and the preprocessing controller (4) controls the fixed shot blasting machine (22) to perform shot blasting and grinding on the workpiece based on the shot blasting scheme; S8, fine shot blasting of the workpiece: the pre-processing controller (4) controls the micro six-axis manipulator (23) based on the shot blasting scheme to drive the fine shot blasting device (24) to fine shot blast the wrinkle dead corners of the workpiece; S9, visually verifying the pretreatment of the workpiece: the pretreatment controller (4) acquires in real time the first image information of the workpiece after drying and the first image information of the workpiece after polishing, and visually verifies the pretreatment of the workpiece based on the first image information and the first image information; The preprocessing controller (4) acquires in real time first image information of the workpiece after drying and second image information of the workpiece after polishing, and performs visual verification of the workpiece preprocessing based on the first image information and the second image information, specifically comprising the following steps: A1. Collecting workpiece image information: The preprocessing controller (4) obtains in real time, through the video acquisition device (9), first image information of the workpiece after drying and second image information of the workpiece after polishing; A2. Verify the workpiece decontamination: The preprocessing controller (4) performs image verification on the workpiece decontamination based on the first image information to determine whether there is contaminant on the workpiece. If there is contaminant, an error message is generated and sent to the management personnel, and the corresponding degreasing parameters are adjusted based on the negative feedback of the contaminant position. A3. Verify the polishing effect of the workpiece: The preprocessing controller (4) verifies the polishing effect of the workpiece based on the second image information to determine whether there is rust on the workpiece. If there is rust, an error message is generated and sent to the management personnel, and the corresponding shot blasting parameters are adjusted based on the negative feedback of the rust position.

2. The electrophoretic coating pretreatment equipment according to claim 1, characterized in that: The degreasing tank (611) and the water washing tank (612) are both provided with an electric heating wire (63) for heating and controlling the temperature of the liquid, a temperature sensor (64) for detecting the temperature of the liquid, and a water level sensor (65) for detecting the water level.

Images