CN113681238A - Electrophoretic coating process for automobile parts - Google Patents
Electrophoretic coating process for automobile parts Download PDFInfo
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- CN113681238A CN113681238A CN202110959754.XA CN202110959754A CN113681238A CN 113681238 A CN113681238 A CN 113681238A CN 202110959754 A CN202110959754 A CN 202110959754A CN 113681238 A CN113681238 A CN 113681238A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses an electrophoretic coating process for automobile accessories, which comprises the steps of accessory processing, pretreatment, electrophoresis, detection, packaging and warehousing, wherein the accessory processing comprises the following steps: cutting the unloading, adopting the unilateral to cut off the blanking machine and cutting the accessory material, cut the monoblock material into the polylith, polylith panel cutting size is the required size of hydroforming technology processing, step two: hydraulic forming, namely performing hydraulic forming on a single plate by adopting a hydraulic machine, and performing the third step: and (4) performing damage treatment, namely performing forming damage judgment after a single plate is subjected to hydraulic forming by a hydraulic machine, transferring the workpiece to a flanging and punching process for subsequent processing after the workpiece is formed and is not damaged, judging again when the workpiece is formed and damaged, and treating a judgment result. According to the invention, a damage treatment procedure is added after the hydraulic forming process, so that the quality of the workpiece subjected to hydraulic forming is detected and treated, the workpiece processing flow is transparent and standardized, and the quality of the workpiece in the processing process is ensured.
Description
Technical Field
The invention relates to the field of coating processes, in particular to an electrophoretic coating process for automobile accessories.
Background
The electrophoretic coating is a coating method which utilizes an external electric field to ensure that particles such as pigment, resin and the like suspended in electrophoretic liquid are directionally migrated and deposited on the surface of a substrate of one of the electrodes, an electrophoretic paint film has the advantages of plump, uniform, flat and smooth coating, the hardness, adhesive force, corrosion resistance, impact resistance and permeability of the electrophoretic paint film are obviously superior to those of other coating processes, the existing automobile accessories are coated by using electrophoretic coating, and the surface of the automobile accessory is coated with a protective layer for ensuring the service life and the attractiveness of the automobile accessory;
before traditional auto parts coating, still need carry on processes such as auto parts processing and surface preparation, the manufacturing procedure includes processes such as cutting unloading, hydroforming and welding dress, wherein in the hydroforming process, some impaired work pieces of quality often do not pass through quality inspection process, just directly get into follow-up processing technology to finally circulate electrophoresis coating technology department, lead to accessory course of working to transparentization and standardization inadequately, thereby can't guarantee the quality of course of working work piece.
Disclosure of Invention
The invention aims to provide an electrophoretic coating process for automobile parts, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the electrophoresis coating process for the automobile parts comprises the steps of part processing, pretreatment, electrophoresis, detection, packaging and warehousing, wherein the part processing comprises the following steps:
the method comprises the following steps: cutting and blanking, namely cutting the accessory material by adopting a single-edge cutting blanking machine, cutting the whole material into a plurality of plates, wherein the cutting size of the plurality of plates is the size required by the hydraulic forming process;
step two: hydraulic forming, namely performing hydraulic forming on a single plate by adopting a hydraulic machine;
step three: and (4) performing damage treatment, namely performing forming damage judgment after a single plate is subjected to hydraulic forming by a hydraulic machine, transferring the workpiece to a flanging and punching process for subsequent processing after the workpiece is formed and is not damaged, judging again when the workpiece is formed and damaged, and treating a judgment result.
Preferably, the accessory processing further comprises the steps of:
step four: flanging and punching, namely flanging and punching the workpiece by using a flanging die and a punching die;
step five: laser cutting, namely trimming the flanged and punched workpiece and cutting off redundant parts of the edge of the workpiece;
step six: and welding, namely welding and assembling a plurality of workpieces by adopting a welding robot.
Preferably, the welding comprises the following specific steps:
the method comprises the steps of assembling and actually matching a plurality of workpieces before welding the workpieces, judging the assembled workpieces after the assembly is actually matched, welding the assembled workpieces if the assembled workpieces are qualified, repairing the assembled workpieces if the assembled workpieces are unqualified, and welding the assembled workpieces if the assembled workpieces are qualified.
Preferably, in the third step, when the workpiece is judged to be damaged in forming, the damaged degree judgment result is two, namely, the small part is damaged and the large area is damaged, the small part is damaged to be subjected to repair welding processing, the processed workpiece is transferred to the flanging and punching process for subsequent processing, the large area is damaged to be scrapped, the pretreatment comprises polishing and grinding, a polishing machine and a grinding machine are adopted to polish and grind the finished product after the accessory is processed, the workpiece is transferred to an electrophoresis process after the workpiece is pretreated, electrophoresis coating is carried out, and finally, the finished product is detected, packaged and stored in a warehouse.
Preferably, the bearing mechanism is composed of a workbench and four supporting legs, the material blocking mechanism is composed of an arc-shaped baffle plate and a supporting plate, the arc-shaped baffle plate is connected to the top end of the workbench in a sliding mode, and the supporting plate is arranged on one side of the arc-shaped baffle plate.
Preferably, the top of stock stop is provided with actuating mechanism, actuating mechanism includes concave type support frame, pneumatic cylinder and the dish of polishing, concave type support frame fixed connection is on the top of workstation, just concave type support frame sets up in cowl's top, the middle part of concave type support frame is connected with the fixed interlude in middle part of pneumatic cylinder, the output of dish fixed connection in pneumatic cylinder of polishing, the both sides of support board all with the inner wall fixed connection of concave type support frame.
Preferably, cowl's inner chamber is provided with places the subassembly, it includes circular platform, spliced pole and location platform to place the subassembly, the location platform sets up in cowl's inner chamber, location platform fixed connection is in the avris of offset, spliced pole fixed connection is in the top of location platform, circular platform fixed connection is in the top of spliced pole.
Preferably, the top of circular platform is provided with the spacing subassembly of multiunit, spacing subassembly includes antiskid cover and spacing post, spacing post fixed connection is in the top of circular platform, antiskid cover fixed interlude is connected in the outer wall of spacing post.
Preferably, the collecting assembly comprises an annular groove, a rectangular diversion trench and a material collecting box, the annular groove is formed in the top end of the workbench, the rectangular diversion trench is formed in the bottom end of the inner cavity of the annular groove, the material collecting box is arranged at the bottom end of the workbench, and the top end of the material collecting box is communicated with the rectangular diversion trench.
The invention has the technical effects and advantages that:
(1) according to the invention, the damage treatment process is added after the hydraulic forming process, so that the quality of the workpiece subjected to hydraulic forming is detected and treated, the workpiece processing flow is transparent and standardized, and the quality of the workpiece in the processing process is ensured;
(2) according to the invention, assembly and actual assembly are carried out before the welding process, and unqualified workpieces after assembly and actual assembly are trimmed, so that the quality of the workpieces after the welding process is ensured, and the standardization and the transparentization of the workpiece processing flow can be further improved;
(3) according to the invention, the arc-shaped baffle and the abutting plate are arranged at the top end of the workbench, so that iron chips splashed out in the workpiece polishing process can be blocked, and the iron chips are prevented from splashing out of the workbench and falling to the ground, so that workers do not need to clean the iron chips on the ground, and the labor intensity of the workers is reduced.
Drawings
FIG. 1 is a schematic structural view of an overall process flow diagram of the present invention.
Fig. 2 is a front cross-sectional structural schematic view of the grinding mechanism of the present invention.
Fig. 3 is a schematic view of the overall structure of the grinding mechanism of the present invention.
Fig. 4 is a schematic view of the enlarged structure at a point a in fig. 3 according to the present invention.
FIG. 5 is a schematic sectional view of a grinding mechanism according to the present invention.
In the figure: 1. a carrying mechanism; 101. a work table; 102. supporting legs; 2. a drive mechanism; 201. a concave support frame; 202. a hydraulic cylinder; 203. grinding disc; 3. a stock stop mechanism; 301. a resisting plate; 302. an arc-shaped baffle plate; 4. a collection assembly; 401. an annular groove; 402. a rectangular diversion trench; 403. a material collecting box; 5. Placing the component; 501. a circular table; 502. connecting columns; 503. a positioning table; 6. a limiting component; 601. an anti-slip sleeve; 602. a limiting column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an electrophoretic coating process for automobile accessories, which comprises accessory processing, pretreatment, electrophoresis and detection packaging, wherein the pretreatment comprises polishing, the finished product after the accessory processing step is polished by a polishing machine and a grinding machine, burrs and surface scratches on the surface of a workpiece can be removed by polishing and grinding the surface of the finished product workpiece, then the workpiece can be cleaned and dried, the surface of the workpiece can be degreased, cleaned, phosphatized and finally cleaned, and dried, the smoothness of the surface of the workpiece can be improved by pretreating, cleaning and drying the surface of the workpiece, so that the quality of the workpiece after electrophoretic coating is improved, the workpiece is transferred to an electrophoretic process for electrophoretic coating after pretreatment, and is described as follows, the electrophoretic coating adopts a full-automatic process flow, wherein one process flow is black and one gray, the two process flows are parallel, the electrophoretic coating adopts Taiwan, the adhesion force of the electrophoretic coating is good, the thickness of a paint film is about 15 micrometers according with the industrial and national standards, the electrophoretic coating comprises the specific steps of firstly immersing a workpiece into an electrophoretic bath, allowing the workpiece to stand and react in the electrophoretic bath for 65-75 seconds, then controlling the workpiece to reciprocate in the electrophoretic bath, allowing the workpiece to stand and react in the electrophoretic bath again after moving, allowing the reaction time to be 65-75 seconds, finishing electrophoretic coating, taking out the workpiece, and finally detecting, packaging and warehousing;
the accessory processing comprises the following steps:
the method comprises the following steps: cutting and blanking, namely cutting the accessory material by adopting a single-edge cutting blanking machine, cutting the whole material into a plurality of plates, wherein the cutting size of the plurality of plates is the size required by the hydraulic forming process;
step two: hydraulic forming, namely performing hydraulic forming on a single plate by adopting a hydraulic machine;
step three: damage treatment, namely performing forming damage judgment after a single plate is hydroformed by a hydraulic press, transferring a workpiece to a flanging and punching process for subsequent processing after the workpiece is formed without damage, performing secondary judgment after the workpiece is formed with damage, processing a judgment result, performing quality detection on the workpiece obtained after the hydroforming process by adding a damage treatment process after the hydroforming process, so that the workpiece with unformed quality is discharged from the whole process flow independently, and processing the judgment result to effectively control the quality of the part processing process Subsequent processing is carried out at the punching process, large-area damage is carried out for scrapping treatment, the damaged workpiece is further refined and judged, a small part of the damaged workpiece can be subjected to repair welding treatment and is put into the flanging and punching processing process again, instead of directly scrapping the workpiece judged to be damaged, the product rate which can be put into processing after the hydraulic forming process is improved, and the yield of the production and processing of the automobile parts is further improved;
the accessory processing further comprises the following steps:
step four: flanging and punching, namely flanging and punching the workpiece by using a flanging die and a punching die;
step five: laser cutting, namely trimming the flanged and punched workpiece and cutting off redundant parts of the edge of the workpiece;
step six: welding, adopt welding robot to weld the equipment to a plurality of work pieces, the concrete step of welding dress is: before welding a plurality of workpieces, assembling the workpieces in a real manner, after the workpieces are assembled in the real manner, judging the assembled workpieces, judging whether the assembled workpieces are qualified or not, namely welding the workpieces, and then repairing the assembled workpieces, judging whether the assembled workpieces are qualified or not, and welding the workpieces if the assembled workpieces are qualified or not, wherein the quality of the welded workpieces can be improved by adding detection work after the assembling in the welding process;
the bearing mechanism 1 comprises a workbench 101 and four supporting legs 102, the four supporting legs 102 are all fixedly connected at the corners of the bottom end of the workbench 101, the top end of the workbench 101 is provided with a collecting assembly 4, the stop mechanism 3 comprises an arc-shaped baffle 302 and a resisting plate 301, the arc-shaped baffle 302 is slidably connected at the top end of the workbench 101, the resisting plate 301 is arranged at one side of the arc-shaped baffle 302, the inner cavity of the arc-shaped baffle 302 is provided with a placing assembly 5, the placing assembly 5 comprises a circular table 501, a connecting column 502 and a positioning table 503, the positioning table 503 is arranged in the inner cavity of the arc-shaped baffle 302, the positioning table 503 is fixedly connected to the side edge of the resisting plate 301, the connecting column 502 is fixedly connected at the top end of the positioning table 503, the circular table 501 is fixedly connected at the top end of the connecting column 502, a workpiece to be polished can be placed at the top end of the circular table 501, the arc-shaped baffle 302 can also be set to be rectangular, the arc-shaped baffle 302 is mainly used for processing the workpiece, the splashed scrap iron is resisted, the scrap iron is prevented from splashing to the ground from the workbench 101, the arc-shaped baffle 302 can also be rectangular, and the scrap iron splashed at the inner cavity of the arc-shaped baffle 302 can be surrounded and resisted;
a driving mechanism 2 is arranged above the material blocking mechanism 3, the driving mechanism 2 comprises a concave support frame 201, a hydraulic cylinder 202 and a polishing disc 203, the concave support frame 201 is fixedly connected to the top end of the workbench 101, the concave support frame 201 is arranged above the arc baffle 302, the middle part of the concave support frame 201 is fixedly connected with the middle part of the hydraulic cylinder 202 in an inserting manner, the polishing disc 203 is fixedly connected to the output end of the hydraulic cylinder 202, two sides of the resisting plate 301 are fixedly connected with the inner wall of the concave support frame 201, the hydraulic cylinder 202 is in telecommunication connection with an external power supply through an external switch, the external switch is turned on, and the hydraulic cylinder 202 can drive the polishing disc 203 to vertically move towards the circular table 501 and polish a workpiece at the top end of the circular table 501;
a plurality of groups of limiting assemblies 6 are arranged at the top end of the circular table 501, each limiting assembly 6 comprises an anti-slip sleeve 601 and a limiting column 602, each limiting column 602 is fixedly connected to the top end of the circular table 501, the anti-slip sleeves 601 are fixedly inserted and connected to the outer wall of each limiting column 602, a workpiece can be placed among the anti-slip sleeves 601, the workpiece is positioned at the top end of the circular table 501, the workpiece is prevented from moving horizontally, the anti-slip sleeves 601 can be arranged as rubber sleeves, the surface of the workpiece can be protected, and the service life of the workpiece is prolonged;
collecting component 4 includes annular groove 401, rectangle guiding gutter 402, aggregate box 403, the top of workstation 101 is seted up to annular groove 401, the bottom of annular groove 401 inner chamber is seted up to rectangle guiding gutter 402, aggregate box 403 sets up in the bottom of workstation 101, and aggregate box 403's top is linked together with rectangle guiding gutter 402, when cowl 302 stops the iron fillings that fly out, iron fillings can roll to the inner chamber of rectangle guiding gutter 402 from annular groove 401's inner wall department, and finally drop to aggregate box 403 department, realize the collection of iron fillings.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The electrophoresis coating process for the automobile parts comprises the steps of part processing, pretreatment, electrophoresis, detection, packaging and warehousing, and is characterized in that the part processing comprises the following steps:
the method comprises the following steps: cutting and blanking, namely cutting the accessory material by adopting a single-edge cutting blanking machine, cutting the whole material into a plurality of plates, wherein the cutting size of the plurality of plates is the size required by the hydraulic forming process;
step two: hydraulic forming, namely performing hydraulic forming on a single plate by adopting a hydraulic machine;
step three: and (4) performing damage treatment, namely performing forming damage judgment after a single plate is subjected to hydraulic forming by a hydraulic machine, transferring the workpiece to a flanging and punching process for subsequent processing after the workpiece is formed and is not damaged, judging again when the workpiece is formed and damaged, and treating a judgment result.
2. The electrocoating process for automotive parts of claim 1 wherein the parts processing further comprises the steps of:
step four: flanging and punching, namely flanging and punching the workpiece by using a flanging die and a punching die;
step five: laser cutting, namely trimming the flanged and punched workpiece and cutting off redundant parts of the edge of the workpiece;
step six: and welding, namely welding and assembling a plurality of workpieces by adopting a welding robot.
3. The electrocoating process for automobile parts according to claim 2, wherein the welding comprises the following specific steps:
the method comprises the steps of assembling and actually matching a plurality of workpieces before welding the workpieces, judging the assembled workpieces after the assembly is actually matched, welding the assembled workpieces if the assembled workpieces are qualified, repairing the assembled workpieces if the assembled workpieces are unqualified, and welding the assembled workpieces if the assembled workpieces are qualified.
4. The electrophoretic coating process for automobile accessories according to claim 1, wherein in the third step, when the workpiece is determined to be damaged, two types of damage degree determination results are provided, namely a small part is damaged and a large area is damaged, the small part is damaged and then subjected to repair welding processing, the workpiece is transferred to a flanging and punching process for subsequent processing after processing, the large area is damaged and discarded, the pretreatment comprises polishing and grinding, a polishing machine and a grinding machine are used for polishing and grinding the finished product after the accessory processing, the workpiece is transferred to an electrophoresis process after pretreatment, subjected to electrophoretic coating, and finally detected, packaged and stored in a warehouse.
5. The utility model provides a grinding device for auto-parts, includes carrier (1) and stock stop (3), its characterized in that, carrier (1) comprises workstation (101) and four supporting legs (102), stock stop (3) comprise cowl (302) and butt board (301), cowl (302) sliding connection is in the top of workstation (101), butt board (301) set up in one side of cowl (302).
6. The grinding device for the automobile accessories is characterized in that a driving mechanism (2) is arranged above the material blocking mechanism (3), the driving mechanism (2) comprises a concave supporting frame (201), a hydraulic cylinder (202) and a grinding disc (203), the concave supporting frame (201) is fixedly connected to the top end of the workbench (101), the concave supporting frame (201) is arranged above the arc-shaped baffle (302), the middle of the concave supporting frame (201) is fixedly connected with the middle of the hydraulic cylinder (202) in a penetrating mode, the grinding disc (203) is fixedly connected to the output end of the hydraulic cylinder (202), and two sides of the abutting plate (301) are fixedly connected with the inner wall of the concave supporting frame (201).
7. The grinding device for the automobile accessories is characterized in that a placing component (5) is arranged in an inner cavity of the arc-shaped baffle plate (302), the placing component (5) comprises a circular table (501), a connecting column (502) and a positioning table (503), the positioning table (503) is arranged in the inner cavity of the arc-shaped baffle plate (302), the positioning table (503) is fixedly connected to the side of the abutting plate (301), the connecting column (502) is fixedly connected to the top end of the positioning table (503), and the circular table (501) is fixedly connected to the top end of the connecting column (502).
8. The grinding device for the automobile accessories is characterized in that a plurality of groups of limiting assemblies (6) are arranged at the top end of the circular table (501), each limiting assembly (6) comprises an anti-skidding sleeve (601) and a limiting column (602), each limiting column (602) is fixedly connected to the top end of the circular table (501), and each anti-skidding sleeve (601) is fixedly inserted into the outer wall of each limiting column (602).
9. Grinding device for automobile accessories according to claim 8, characterized in that four support legs (102) are fixedly connected at the corners of the bottom end of the worktable (101), and the top end of the worktable (101) is provided with a collection assembly (4).
10. Grinding device for auto-parts according to claim 9, characterized in that the collection component (4) comprises an annular groove (401), a rectangular diversion trench (402), and a collection box (403), the annular groove (401) is opened at the top end of the workbench (101), the rectangular diversion trench (402) is opened at the bottom end of the inner cavity of the annular groove (401), the collection box (403) is arranged at the bottom end of the workbench (101), and the top end of the collection box (403) is communicated with the rectangular diversion trench (402).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110959754.XA CN113681238A (en) | 2021-08-20 | 2021-08-20 | Electrophoretic coating process for automobile parts |
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| CN202110959754.XA CN113681238A (en) | 2021-08-20 | 2021-08-20 | Electrophoretic coating process for automobile parts |
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Cited By (1)
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